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Security hardening for Debian
By Jake Edge February 6, 2008
Making the programs in a distribution more resistant to exploits—a
process known as hardening—is a fairly common way to reduce the
attack surface for the distribution. Many distributions have made
an effort in this area, with some adding in an overall security architecture, like
AppArmor for SUSE or SELinux for Red Hat and Fedora distributions.
Debian is currently looking at enabling some hardening features,
potentially throughout a large swath of packages that it distributes. The
features being considered and the concerns raised provide an interesting
look at the tradeoffs.
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A posting to
debian-devel-announce regarding hardening features for Lenny started
the conversation. Those packages that are most susceptible—network services, packages that parse files from
untrusted sources, or those that have been the subject of a security
alert—should enable a set of security tools that will help deflect
attacks against them. Various attacks rely upon certain characteristics of
Linux binaries that allow them to be exploited. By altering the way the
binaries are built, those particular threats can be mitigated.
The experimental hardening-wrapper
package makes enabling the various toolchain differences as easy as setting
DEB_BUILD_HARDENING=1 in the environment. This will change
gcc, g++, and ld to use the desired flags when
building packages. Each hardening feature can also be disabled separately
by setting DEB_BUILD_HARDENING_xyzzy=0 (where xyzzy is the name of
a hardening feature) if they cause build or
performance problems for a particular package.
The specific features enabled are described in the original posting as well
as with more detail on the Debian wiki entry for
Hardening. They are:
- using -Wformat to catch printf() family calls that do
not have a string literal for the format string which can lead to problems
if the argument came from an untrusted source and contains format specifiers.
- using -D_FORTIFY_SOURCE_ to validate glibc calls such as
strcpy() when the buffer sizes are known at compile time, which
can help stop buffer overflow attacks.
- using -fstack-protector to thwart most stack smashing attacks.
- creating Position Independent Executables (PIE) which facilitates using
the Address Space Layout Randomization that is available in some kernels.
This makes it difficult for an attacker to have any knowledge of what the
addresses for the program's sections will look like.
- using ld -z relro to change certain sections to be read-only
once ld has made its modifications while loading the program. This can
thwart attacks that try to overwrite the Global Offset Table (GOT).
Many other distributions have already been down this path: Gentoo
has a page describing their hardened toolchain, Mark Cox of Red Hat has
a detailed look
at the evolution of security features in Red Hat and Fedora releases,
OpenSUSE has a page
about its security features, and so on. There is a price to be paid in
binary size, execution speed, and cache behavior for these techniques, but
for most environments, where resources are not massively constrained, the
cost is worth it. It makes new attacks against those systems more
difficult to design, which will make users and administrators sleep a
little better at night.
Comments (4 posted)
New vulnerabilities
gnatsweb: cross-site scripting
| Package(s): | gnatsweb |
CVE #(s): | CVE-2007-2808
|
| Created: | February 6, 2008 |
Updated: | February 6, 2008 |
| Description: |
From the Debian advisory: "r0t" discovered that gnatsweb, a web interface to GNU GNATS, did not
correctly sanitize the database parameter in the main CGI script. This
could allow the injection of arbitrary HTML, or javascript code.
|
| Alerts: |
|
Comments (none posted)
goffice: multiple vulnerabilities
| Package(s): | goffice |
CVE #(s): | |
| Created: | January 31, 2008 |
Updated: | February 6, 2008 |
| Description: |
GOffice is vulnerable to buffer overflows and memory corruption in PCRE.
If an attacker can convince a user to open specially crafted documents,
it may be possible to execute arbitrary code, disclose information
or cause a denial of service. |
| Alerts: |
|
Comments (none posted)
kazehakase: multiple vulnerabilities
| Package(s): | kazehakase |
CVE #(s): | |
| Created: | January 31, 2008 |
Updated: | February 6, 2008 |
| Description: |
The kazehakase web browser is vulnerable to buffer overflows and
memory corruption in PCRE. If a remote attacker can convince a user to
open specially crafted bookmarks, it can lead to the
execution of arbitrary code, denial of service or
arbitrary information disclosure. |
| Alerts: |
|
Comments (none posted)
kernel: denial of service
| Package(s): | kernel |
CVE #(s): | CVE-2007-4130
CVE-2007-6694
|
| Created: | February 1, 2008 |
Updated: | March 6, 2008 |
| Description: |
From the Red Hat advisory: A flaw was found in the way the Red Hat
Enterprise Linux 4 kernel handled page faults when a CPU used the NUMA
method for accessing memory on Itanium architectures. A local unprivileged
user could trigger this flaw and cause a denial of service (system panic).
A possible NULL pointer dereference was found in the chrp_show_cpuinfo
function when using the PowerPC architecture. This may have allowed a local
unprivileged user to cause a denial of service (crash). |
| Alerts: |
|
Comments (none posted)
pcre: denial of service
| Package(s): | pcre |
CVE #(s): | CVE-2006-7225
CVE-2006-7226
|
| Created: | February 1, 2008 |
Updated: | February 6, 2008 |
| Description: |
From the CVE entries: Perl-Compatible Regular Expression (PCRE) library
before 6.7 allows context-dependent attackers to cause a denial of service
(error or crash) via a regular expression that involves a "malformed POSIX
character class", as demonstrated via an invalid character after a [[
sequence. Perl-Compatible Regular Expression (PCRE) library before 6.7
does not properly calculate the compiled memory allocation for regular
expressions that involve a quantified "subpattern containing a named
recursion or subroutine reference," which allows context-dependent
attackers to cause a denial of service (error or crash). |
| Alerts: |
|
Comments (1 posted)
rb_libtorrent: stack overflow
| Package(s): | rb_libtorrent |
CVE #(s): | |
| Created: | February 4, 2008 |
Updated: | February 6, 2008 |
| Description: |
From the Fedora advisory: A potential remote exploit was found in the bdecode_recursive routine that
could trigger a stack overflow when passed malformed message data. |
| Alerts: |
|
Comments (none posted)
xdg-utils: arbitrary command execution
| Package(s): | xdg-utils |
CVE #(s): | CVE-2008-0386
|
| Created: | January 31, 2008 |
Updated: | February 22, 2008 |
| Description: |
From the Gentoo alert:
Miroslav Lichvar discovered that the "xdg-open" and "xdg-email" shell
scripts do not properly sanitize their input before processing it.
A remote attacker could entice a user to open a specially crafted link
with a vulnerable application using Xdg-Utils (e.g. an email client),
resulting in the execution of arbitrary code with the privileges of the
user running the application. |
| Alerts: |
|
Comments (1 posted)
Updated vulnerabilities
cairo: integer overflow
| Package(s): | Cairo |
CVE #(s): | CVE-2007-5503
|
| Created: | November 29, 2007 |
Updated: | February 8, 2008 |
| Description: |
Cairo has an integer overflow vulnerability in the PNG image processing
code. If a user processes a specially crafted PNG image with an
application that is linked against cairo, arbitrary code can be executed
with the user's privileges. |
| Alerts: |
|
Comments (none posted)
MySQL: privilege escalation
| Package(s): | MySQL |
CVE #(s): | CVE-2007-3781
CVE-2007-5969
|
| Created: | December 11, 2007 |
Updated: | February 8, 2008 |
| Description: |
MySQL Community Server before 5.0.51, when a table relies on symlinks created through explicit DATA DIRECTORY and INDEX DIRECTORY options, allows remote authenticated users to overwrite system table information and gain privileges via a RENAME TABLE statement that changes the symlink to point to an existing file. (CVE-2007-5969)
MySQL Community Server before 5.0.45 does not require privileges such as SELECT for the source table in a CREATE TABLE LIKE statement, which allows remote authenticated users to obtain sensitive information such as the table structure. (CVE-2007-3781) |
| Alerts: |
|
Comments (none posted)
Xorg: multiple vulnerabilities
Comments (none posted)
apache2: information disclosure
| Package(s): | apache |
CVE #(s): | CVE-2007-1862
|
| Created: | June 20, 2007 |
Updated: | February 18, 2008 |
| Description: |
From the Mandriva advisory: "The recall_headers function in mod_mem_cache in Apache 2.2.4 does not
properly copy all levels of header data, which can cause Apache to
return HTTP headers containing previously-used data, which could be
used to obtain potentially sensitive information by unauthorized users." |
| Alerts: |
|
Comments (2 posted)
apache: multiple vulnerabilities
| Package(s): | apache |
CVE #(s): | CVE-2007-3304
CVE-2006-5752
|
| Created: | June 27, 2007 |
Updated: | February 18, 2008 |
| Description: |
The Apache HTTP Server did not verify that a process was an Apache child
process before sending it signals. A local attacker who has the ability to
run scripts on the Apache HTTP Server could manipulate the scoreboard and
cause arbitrary processes to be terminated, which could lead to a denial of
service. (CVE-2007-3304)
A flaw was found in the Apache HTTP Server mod_status module. Sites with
the server-status page publicly accessible and ExtendedStatus enabled were
vulnerable to a cross-site scripting attack. On Red Hat Enterprise Linux
the server-status page is not enabled by default and it is best practice to
not make this publicly available. (CVE-2006-5752) |
| Alerts: |
|
Comments (1 posted)
apache: cross-site scripting
| Package(s): | apache |
CVE #(s): | CVE-2006-3918
|
| Created: | August 9, 2006 |
Updated: | February 5, 2008 |
| Description: |
From the Red Hat advisory: "A bug was found in Apache where an invalid Expect header sent to the server
was returned to the user in an unescaped error message. This could
allow an attacker to perform a cross-site scripting attack if a victim was
tricked into connecting to a site and sending a carefully crafted Expect
header." |
| Alerts: |
|
Comments (none posted)
apache: several vulnerabilities
| Package(s): | apache |
CVE #(s): | CVE-2007-5000
CVE-2007-6388
CVE-2008-0005
|
| Created: | January 15, 2008 |
Updated: | March 12, 2008 |
| Description: |
A flaw was found in the mod_imap module. On sites where mod_imap was
enabled and an imagemap file was publicly available, a cross-site scripting
attack was possible. (CVE-2007-5000)
A flaw was found in the mod_status module. On sites where mod_status was
enabled and the status pages were publicly available, a cross-site
scripting attack was possible. (CVE-2007-6388)
A flaw was found in the mod_proxy_ftp module. On sites where mod_proxy_ftp
was enabled and a forward proxy was configured, a cross-site scripting
attack was possible against Web browsers which did not correctly derive the
response character set following the rules in RFC 2616. (CVE-2008-0005) |
| Alerts: |
|
Comments (1 posted)
httpd: denial of service, cross-site scripting
| Package(s): | apache httpd |
CVE #(s): | CVE-2007-3847
CVE-2007-4465
|
| Created: | September 25, 2007 |
Updated: | February 15, 2008 |
| Description: |
A flaw was found in the mod_proxy module. On sites where a reverse proxy is
configured, a remote attacker could send a carefully crafted request that
would cause the Apache child process handling that request to crash. On
sites where a forward proxy is configured, an attacker could cause a
similar crash if a user could be persuaded to visit a malicious site using
the proxy. This could lead to a denial of service if using a threaded
Multi-Processing Module. (CVE-2007-3847)
A flaw was found in the mod_autoindex module. On sites where directory
listings are used, and the AddDefaultCharset directive has been removed
from the configuration, a cross-site-scripting attack may be possible
against browsers which do not correctly derive the response character set
following the rules in RFC 2616. (CVE-2007-4465) |
| Alerts: |
|
Comments (none posted)
apache2: denial of service
| Package(s): | apache2 |
CVE #(s): | CVE-2007-1863
|
| Created: | November 19, 2007 |
Updated: | February 18, 2008 |
| Description: |
From the CVE entry:
cache_util.c in the mod_cache module in Apache HTTP Server (httpd), when caching is enabled and a threaded Multi-Processing Module (MPM) is used, allows remote attackers to cause a denial of service (child processing handler crash) via a request with the (1) s-maxage, (2) max-age, (3) min-fresh, or (4) max-stale Cache-Control headers without a value. |
| Alerts: |
|
Comments (1 posted)
asterisk: possible SQL injection
| Package(s): | asterisk |
CVE #(s): | CVE-2007-6170
|
| Created: | December 3, 2007 |
Updated: | March 7, 2008 |
| Description: |
Tilghman Lesher discovered that the logging engine of Asterisk, a free
software PBX and telephony toolkit, performs insufficient sanitizing of
call-related data, which may lead to SQL injection. |
| Alerts: |
|
Comments (none posted)
bind: off-by-one error
| Package(s): | bind |
CVE #(s): | CVE-2008-0122
|
| Created: | January 22, 2008 |
Updated: | March 14, 2008 |
| Description: |
Off-by-one error in the inet_network function in libc in FreeBSD 6.2, 6.3,
and 7.0-PRERELEASE and earlier allows context-dependent attackers to cause
a denial of service (crash) and possibly execute arbitrary code via crafted
input that triggers memory corruption. |
| Alerts: |
|
Comments (none posted)
boost: denial of service
| Package(s): | boost |
CVE #(s): | CVE-2008-0171
CVE-2008-0172
|
| Created: | January 17, 2008 |
Updated: | March 14, 2008 |
| Description: |
From the Ubuntu alert:
Will Drewry and Tavis Ormandy discovered that the boost library
did not properly perform input validation on regular expressions.
An attacker could send a specially crafted regular expression to
an application linked against boost and cause a denial of service
via application crash. |
| Alerts: |
|
Comments (none posted)
cacti: SQL injection vulnerability
| Package(s): | cacti |
CVE #(s): | CVE-2007-6035
|
| Created: | November 22, 2007 |
Updated: | February 18, 2008 |
| Description: |
Versions of Cacti prior to 0.8.7a have an SQL injection vulnerability.
Remote attackers can execute arbitrary SQL commands via unspecified vectors. |
| Alerts: |
|
Comments (none posted)
cacti: denial of service
| Package(s): | cacti |
CVE #(s): | CVE-2007-3112
CVE-2007-3113
|
| Created: | September 18, 2007 |
Updated: | February 18, 2008 |
| Description: |
A vulnerability in Cacti 0.8.6i and earlier versions allows remote
authenticated users to cause a denial of service (CPU consumption) via
large values of the graph_start, graph_end, graph_height, or graph_width
parameters. |
| Alerts: |
|
Comments (none posted)
clamav: denial of service
| Package(s): | clamav |
CVE #(s): | CVE-2007-3725
|
| Created: | July 24, 2007 |
Updated: | February 27, 2008 |
| Description: |
A NULL pointer dereference has been discovered in the RAR VM of Clam
Antivirus (ClamAV) which allows user-assisted remote attackers to
cause a denial of service via a specially crafted RAR archives. |
| Alerts: |
|
Comments (none posted)
clamav: multiple vulnerabilities
| Package(s): | clamav |
CVE #(s): | CVE-2007-4510
CVE-2007-4560
|
| Created: | September 3, 2007 |
Updated: | February 13, 2008 |
| Description: |
Several remote vulnerabilities have been discovered in the Clam anti-virus
toolkit. The Common Vulnerabilities and Exposures project identifies the
following problems:
CVE-2007-4510:
It was discovered that the RTF and RFC2397 parsers can be tricked
into dereferencing a NULL pointer, resulting in denial of service.
CVE-2007-4560:
It was discovered clamav-milter performs insufficient input
sanitizing, resulting in the execution of arbitrary shell commands.
|
| Alerts: |
|
Comments (none posted)
clamav: integer overflow and off-by-one
| Package(s): | clamav |
CVE #(s): | CVE-2007-6335
CVE-2007-6336
|
| Created: | December 19, 2007 |
Updated: | February 13, 2008 |
| Description: |
ClamAV contains integer overflow and off-by-one errors which could be exploited (via specially-crafted email) to execute arbitrary code. |
| Alerts: |
|
Comments (none posted)
cups: denial of service
| Package(s): | cups |
CVE #(s): | CVE-2007-0720
|
| Created: | March 26, 2007 |
Updated: | February 7, 2008 |
| Description: |
Previous versions of the cups package could be forced to hang via a client
"partially negotiating" an ssl connection. In this state, cups would not
allow other connections to be made, a denial of service. |
| Alerts: |
|
Comments (none posted)
cups: buffer overflow
| Package(s): | cups |
CVE #(s): | CVE-2007-5848
|
| Created: | January 7, 2008 |
Updated: | February 27, 2008 |
| Description: |
From the CVE entry:
Buffer overflow in CUPS in Apple Mac OS X 10.4.11 allows local admin users to execute arbitrary code via a crafted URI to the CUPS service.
From the rPath advisory:
Previous versions of the cups package contain a buffer-overflow
weakness. It is not believed that this weakness can be exploited
to execute malicious code. |
| Alerts: |
|
Comments (1 posted)
cups: multiple vulnerabilities
Comments (none posted)
debian-goodies: privilege escalation
| Package(s): | debian-goodies |
CVE #(s): | CVE-2007-3912
|
| Created: | October 5, 2007 |
Updated: | March 24, 2008 |
| Description: |
Thomas de Grenier de Latour discovered that the checkrestart program included
in debian-goodies did not correctly handle shell meta-characters. A local
attacker could exploit this to gain the privileges of the user running
checkrestart. |
| Alerts: |
|
Comments (none posted)
e2fsprogs: integer overflows
| Package(s): | e2fsprogs |
CVE #(s): | CVE-2007-5497
|
| Created: | December 7, 2007 |
Updated: | February 12, 2008 |
| Description: |
Rafal Wojtczuk of McAfee AVERT Research discovered that e2fsprogs,
ext2 file system utilities and libraries, contained multiple
integer overflows in memory allocations, based on sizes taken directly
from filesystem information. These could result in heap-based
overflows potentially allowing the execution of arbitrary code. |
| Alerts: |
|
Comments (none posted)
emacs: buffer overflow
| Package(s): | emacs |
CVE #(s): | CVE-2007-6109
|
| Created: | December 10, 2007 |
Updated: | February 8, 2008 |
| Description: |
From the National Vulnerability Database:
Buffer overflow in emacs allows attackers to have an unknown impact, as demonstrated via a vector involving the command line. |
| Alerts: |
|
Comments (none posted)
emacs: command execution via local variables
| Package(s): | emacs |
CVE #(s): | CVE-2007-5795
|
| Created: | November 14, 2007 |
Updated: | February 5, 2008 |
| Description: |
From the original Debian problem report: "In Debian's version of GNU Emacs 22.1+1-2, the `hack-local-variables'
function does not behave correctly when `enable-local-variables' is
set to :safe. The documentation of `enable-local-variables' states
that the value :safe means to set only safe variables, as determined
by `safe-local-variable-p' and `risky-local-variable-p' (and the data
driving them), but Emacs ignores this and instead sets all the local
variables." When this setting (which is not the default) is in effect, opening a hostile file could lead to the execution of arbitrary commands. |
| Alerts: |
|
Comments (1 posted)
evolution: format string error
| Package(s): | evolution |
CVE #(s): | CVE-2007-1002
|
| Created: | March 27, 2007 |
Updated: | February 27, 2008 |
| Description: |
A format string error in the "write_html()" function in calendar/gui/
e-cal-component-memo-preview.c when displaying a memo's categories can
potentially be exploited to execute arbitrary code via a specially crafted
shared memo containing format specifiers. |
| Alerts: |
|
Comments (1 posted)
exiftags: multiple vulnerabilities
| Package(s): | exiftags |
CVE #(s): | CVE-2007-6354
CVE-2007-6355
CVE-2007-6356
|
| Created: | December 31, 2007 |
Updated: | April 1, 2008 |
| Description: |
From the Gentoo advisory: Meder Kydyraliev (Google Security) discovered that Exif metadata is not
properly sanitized before being processed, resulting in illegal memory
access in the postprop() and other functions (CVE-2007-6354). He also
discovered integer overflow vulnerabilities in the parsetag() and other
functions (CVE-2007-6355) and an infinite recursion in the readifds()
function caused by recursive IFD references (CVE-2007-6356). |
| Alerts: |
|
Comments (none posted)
firebird: buffer overflow
| Package(s): | firebird |
CVE #(s): | CVE-2007-3181
|
| Created: | July 2, 2007 |
Updated: | March 27, 2008 |
| Description: |
The Firebird DBMS has a buffer overflow vulnerability involving
the processing of connect requests with an overly large p_cnct_count
value. Remote attackers can send a specially crafted
request to the server in order to potentially execute arbitrary code with
the permissions of the Firebird user. |
| Alerts: |
|
Comments (none posted)
firefox: multiple vulnerabilities
| Package(s): | firefox |
CVE #(s): | CVE-2007-3844
CVE-2007-3845
|
| Created: | August 1, 2007 |
Updated: | February 20, 2008 |
| Description: |
A flaw was discovered in handling of "about:blank" windows used by
addons. A malicious web site could exploit this to modify the contents,
or steal confidential data (such as passwords), of other web pages.
(CVE-2007-3844)
Jesper Johansson discovered that spaces and double-quotes were
not correctly handled when launching external programs. In rare
configurations, after tricking a user into opening a malicious web page,
an attacker could execute helpers with arbitrary arguments with the
user's privileges. (CVE-2007-3845) |
| Alerts: |
|
Comments (none posted)
firefox: multiple vulnerabilities
| Package(s): | firefox seamonkey |
CVE #(s): | CVE-2007-5947
CVE-2007-5959
CVE-2007-5960
|
| Created: | November 27, 2007 |
Updated: | March 3, 2008 |
| Description: |
A cross-site scripting flaw was found in the way Firefox handled the
jar: URI scheme. It was possible for a malicious website to leverage this
flaw and conduct a cross-site scripting attack against a user running
Firefox. (CVE-2007-5947)
Several flaws were found in the way Firefox processed certain malformed web
content. A webpage containing malicious content could cause Firefox to
crash, or potentially execute arbitrary code as the user running Firefox.
(CVE-2007-5959)
A race condition existed when Firefox set the "window.location" property
for a webpage. This flaw could allow a webpage to set an arbitrary Referer
header, which may lead to a Cross-site Request Forgery (CSRF) attack
against websites that rely only on the Referer header for protection.
(CVE-2007-5960)
|
| Alerts: |
|
Comments (1 posted)
firefox, thunderbird, seamonkey: multiple vulnerabilities
| Package(s): | firefox, thunderbird, seamonkey |
CVE #(s): | CVE-2007-3738
CVE-2007-3656
CVE-2007-3670
CVE-2007-3285
CVE-2007-3737
CVE-2007-3089
CVE-2007-3736
CVE-2007-3734
CVE-2007-3735
|
| Created: | July 18, 2007 |
Updated: | March 31, 2008 |
| Description: |
shutdown and moz_bug_r_a4 reported two separate ways to modify an
XPCNativeWrapper such that subsequent access by the browser would result in
executing user-supplied code. (CVE-2007-3738)
Michal Zalewski reported that it was possible to bypass the same-origin
checks and read from cached (wyciwyg) documents It is possible to access
wyciwyg:// documents without proper same domain policy checks through the
use of HTTP 302 redirects. This enables the attacker to steal sensitive
data displayed on dynamically generated pages; perform cache poisoning; and
execute own code or display own content with URL bar and SSL certificate
data of the attacked page (URL spoofing++). (CVE-2007-3656)
Internet Explorer calls registered URL protocols without escaping quotes
and may be used to pass unexpected and potentially dangerous data to the
application that registers that URL Protocol. (CVE-2007-3670)
Ronald van den Heetkamp reported that a filename URL containing %00
(encoded null) can cause Firefox to interpret the file extension
differently than the underlying Windows operating system potentially
leading to unsafe actions such as running a program. This is only
accessible locally. (CVE-2007-3285)
An attacker can use an element outside of a document to call an event
handler allowing content to run arbitrary code with chrome
privileges. (CVE-2007-3737)
Ronen Zilberman and Michal Zalewski both reported that it was possible to
exploit a timing issue to inject content into about:blank frames in a
page. When opening a window from a script, it is possible to spoof the
content of the newly opened window's frames within a short time frame,
while the window is loading. (CVE-2007-3089)
Mozilla contributor moz_bug_r_a4 demonstrated that the methods
addEventListener and setTimeout could be used to inject script into another
site in violation of the browser's same-origin policy. This could be used
to access or modify private or valuable information from that other
site. (CVE-2007-3736)
As part of the Firefox 2.0.0.5 update releases Mozilla developers fixed
many bugs to improve the stability of the product. Some of these crashes
that showed evidence of memory corruption under certain circumstances and
we presume that with enough effort at least some of these could be
exploited to run arbitrary code. Note: Thunderbird shares the browser
engine with Firefox and could be vulnerable if JavaScript were to be
enabled in mail. This is not the default setting and we strongly discourage
users from running JavaScript in mail. Without further investigation we
cannot rule out the possibility that for some of these an attacker might be
able to prepare memory for exploitation through some means other than
JavaScript, such as large images. (CVE-2007-3734, CVE-2007-3735) |
| Alerts: |
|
Comments (none posted)
flash-plugin: lots of problems
Comments (3 posted)
gallery2: multiple vulnerabilities
| Package(s): | gallery2 |
CVE #(s): | CVE-2007-6685
CVE-2007-6686
CVE-2007-6687
CVE-2007-6688
CVE-2007-6689
CVE-2007-6690
CVE-2007-6691
CVE-2007-6692
CVE-2007-6693
|
| Created: | December 27, 2007 |
Updated: | February 12, 2008 |
| Description: |
Versions of the Gallery photo management application before 2.2.4
have the following vulnerabilities: (1) an unauthorized album creation and file upload, (2) a local file inclusion vulnerability, (3) several cross site scripting vulnerabilities, (4) a web-accessibility protection problem,
(5) problems with checks for disallowed file
extensions with file uploads, (6) missing permissions checks on GR commands,
(7) several information disclosures, (8) an arbitrary URL redirection
problem and (9) a proxied request weakness. |
| Alerts: |
|
Comments (none posted)
gcc: file overwrite vulnerability
| Package(s): | gcc |
CVE #(s): | CVE-2006-3619
|
| Created: | September 6, 2006 |
Updated: | March 14, 2008 |
| Description: |
The fastjar utility found in the GNU compiler collection does not perform adequate file path checking, allowing the creation or overwriting of files outside of the current directory tree. |
| Alerts: |
|
Comments (none posted)
gd: buffer overflow
| Package(s): | gd |
CVE #(s): | CVE-2007-0455
|
| Created: | February 7, 2007 |
Updated: | February 28, 2008 |
| Description: |
The gd graphics library contains a buffer overflow which could enable a remote attacker to execute arbitrary code. Note that various other packages include code from gd and could also be vulnerable. |
| Alerts: |
|
Comments (2 posted)
gd: multiple vulnerabilities
| Package(s): | gd |
CVE #(s): | CVE-2007-3472
CVE-2007-3473
CVE-2007-3474
CVE-2007-3475
CVE-2007-3476
CVE-2007-3477
CVE-2007-3478
|
| Created: | August 6, 2007 |
Updated: | February 28, 2008 |
| Description: |
Integer overflow in gdImageCreateTrueColor function in the GD Graphics
Library (libgd) before 2.0.35 allows user-assisted remote attackers
to have unspecified remote attack vectors and impact. (CVE-2007-3472)
The gdImageCreateXbm function in the GD Graphics Library (libgd)
before 2.0.35 allows user-assisted remote attackers to cause a denial
of service (crash) via unspecified vectors involving a gdImageCreate
failure. (CVE-2007-3473)
Multiple unspecified vulnerabilities in the GIF reader in the
GD Graphics Library (libgd) before 2.0.35 allow user-assisted
remote attackers to have unspecified attack vectors and
impact. (CVE-2007-3474)
The GD Graphics Library (libgd) before 2.0.35 allows user-assisted
remote attackers to cause a denial of service (crash) via a GIF image
that has no global color map. (CVE-2007-3475)
Array index error in gd_gif_in.c in the GD Graphics Library (libgd)
before 2.0.35 allows user-assisted remote attackers to cause
a denial of service (crash and heap corruption) via large color
index values in crafted image data, which results in a segmentation
fault. (CVE-2007-3476)
The (a) imagearc and (b) imagefilledarc functions in GD Graphics
Library (libgd) before 2.0.35 allows attackers to cause a denial
of service (CPU consumption) via a large (1) start or (2) end angle
degree value. (CVE-2007-3477)
Race condition in gdImageStringFTEx (gdft_draw_bitmap) in gdft.c in the
GD Graphics Library (libgd) before 2.0.35 allows user-assisted remote
attackers to cause a denial of service (crash) via unspecified vectors,
possibly involving truetype font (TTF) support. (CVE-2007-3478) |
| Alerts: |
|
Comments (none posted)
gd: denial of service
| Package(s): | gd |
CVE #(s): | CVE-2007-2756
|
| Created: | June 14, 2007 |
Updated: | February 28, 2008 |
| Description: |
Libgd2 has a denial of service vulnerability involving the incorrect
validation of PNG callback results. If an application that is linked
against libgd2 is used to process a specially-crafted PNG file,
a denial of service involving CPU resource consumption can be
caused. |
| Alerts: |
|
Comments (none posted)
gforge: cross-site scripting
| Package(s): | gforge |
CVE #(s): | CVE-2007-0176
|
| Created: | January 28, 2008 |
Updated: | January 30, 2008 |
| Description: |
From the NVD entry:
Cross-site scripting (XSS) vulnerability in search/advanced_search.php in GForge 4.5.11 allows remote attackers to inject arbitrary web script or HTML via the words parameter. |
| Alerts: |
|
Comments (none posted)
gimp: multiple vulnerabilities
| Package(s): | gimp |
CVE #(s): | CVE-2007-2949
|
| Created: | June 28, 2007 |
Updated: | February 27, 2008 |
| Description: |
The gimp image editor has several vulnerabilities, including
a problem where it can open PSD files with excessive dimensions
and a possible stack overflow in the Sunras loader. |
| Alerts: |
|
Comments (none posted)
horde-kronolith: local file inclusion
| Package(s): | horde-kronolith |
CVE #(s): | CVE-2006-6175
|
| Created: | January 17, 2007 |
Updated: | March 7, 2008 |
| Description: |
Kronolith contains a mistake in lib/FBView.php where a raw, unfiltered
string is used instead of a sanitized string to view local files. An
authenticated attacker could craft an HTTP GET request that uses directory
traversal techniques to execute any file on the web server as PHP code,
which could allow information disclosure or arbitrary code execution with
the rights of the user running the PHP application (usually the webserver
user). |
| Alerts: |
|
Comments (none posted)
horde3: remote email deletion
| Package(s): | horde3 |
CVE #(s): | CVE-2007-6018
|
| Created: | January 21, 2008 |
Updated: | February 29, 2008 |
| Description: |
From the Debian advisory:
Ulf Harnhammer discovered that the HTML filter of the Horde web
application framework performed insufficient input sanitising, which
may lead to the deletion | |