Security

During the process of CUPS socket activation code refactoring in favor of systemd capability a security flaw was found in the way CUPS service honored Listen localhost:631 cupsd.conf configuration option. The setting was recognized properly for IPv4-enabled systems, but failed to be correctly applied for IPv6-enabled systems. As a result, a remote attacker could use this flaw to obtain (unauthorized) access to the CUPS web-based administration interface.

Dovecot 2.1.11 was released and includes a fix for a crash condition when the IMAP server was issued a SEARCH command with multiple KEYWORD parameters. An authenticated remote user could use this flaw to crash Dovecot.

A denial of service flaw was found in the way the server component of Freeciv, a turn-based, multi-player, X based strategy game, processed certain packets (invalid packets with whole packet length lower than packet header size or syntactically valid packets, but whose processing would lead to an infinite loop). A remote attacker could send a specially-crafted packet that, when processed would lead to freeciv server to terminate (due to memory exhaustion) or become unresponsive (due to excessive CPU use).

An XML eXternal Entity (XXE) flaw was found in the way Inkscape, a vector-based drawing program using SVG as its native file format performed rasterization of certain SVG images. A remote attacker could provide a specially-crafted SVG image that, when opened in inkscape would lead to arbitrary local file disclosure or denial of service.

Christoph Diehl, Christian Holler, Mats Palmgren, Chiaki Ishikawa, Bill Gianopoulos, Benoit Jacob, Gary Kwong, Robert O'Callahan, Jesse Ruderman, and Julian Seward discovered multiple memory safety issues affecting Firefox. If the user were tricked into opening a specially crafted page, an attacker could possibly exploit these to cause a denial of service via application crash, or potentially execute code with the privileges of the user invoking Firefox. (CVE-2013-0769, CVE-2013-0749, CVE-2013-0770)

Abhishek Arya discovered several user-after-free and buffer overflows in Firefox. An attacker could exploit these to cause a denial of service via application crash, or potentially execute code with the privileges of the user invoking Firefox. (CVE-2013-0760, CVE-2013-0761, CVE-2013-0762, CVE-2013-0763, CVE-2013-0766, CVE-2013-0767, CVE-2013-0771, CVE-2012-5829)

A stack buffer was discovered in Firefox. If the user were tricked into opening a specially crafted page, an attacker could possibly exploit this to cause a denial of service via application crash, or potentially execute code with the privileges of the user invoking Firefox. (CVE-2013-0768)

Jerry Baker discovered that Firefox did not always properly handle threading when performing downloads over SSL connections. An attacker could exploit this to cause a denial of service via application crash. (CVE-2013-0764)

Olli Pettay and Boris Zbarsky discovered flaws in the Javacript engine of Firefox. An attacker could cause a denial of service via application crash, or potentially execute code with the privileges of the user invoking Firefox. (CVE-2013-0745, CVE-2013-0746)

Jesse Ruderman discovered a flaw in the way Firefox handled plugins. If a user were tricked into opening a specially crafted page, a remote attacker could exploit this to bypass security protections to conduct clickjacking attacks. (CVE-2013-0747)

Sviatoslav Chagaev discovered that Firefox did not properly handle XBL files with multiple XML bindings with SVG content. An attacker could cause a denial of service via application crash, or potentially execute code with the privileges of the user invoking Firefox. (CVE-2013-0752)

Mariusz Mlynski discovered two flaws to gain access to privileged chrome functions. An attacker could possibly exploit this to execute code with the privileges of the user invoking Firefox. (CVE-2013-0757, CVE-2013-0758)

Several use-after-free issues were discovered in Firefox. If the user were tricked into opening a specially crafted page, an attacker could possibly exploit this to execute code with the privileges of the user invoking Firefox. (CVE-2013-0753, CVE-2013-0754, CVE-2013-0755, CVE-2013-0756)

Two intermediate CA certificates were mis-issued by the TURKTRUST certificate authority. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could be exploited to view sensitive information. (CVE-2013-0743)

Several flaws were found in the processing of malformed web content. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox. (CVE-2013-0744, CVE-2013-0746, CVE-2013-0750, CVE-2013-0753, CVE-2013-0754, CVE-2013-0762, CVE-2013-0766, CVE-2013-0767, CVE-2013-0769)

A flaw was found in the way Chrome Object Wrappers were implemented. Malicious content could be used to cause Firefox to execute arbitrary code via plug-ins installed in Firefox. (CVE-2013-0758)

A flaw in the way Firefox displayed URL values in the address bar could allow a malicious site or user to perform a phishing attack. (CVE-2013-0759)

An information disclosure flaw was found in the way certain JavaScript functions were implemented in Firefox. An attacker could use this flaw to bypass Address Space Layout Randomization (ASLR) and other security restrictions. (CVE-2013-0748)

A flaw was found in the way the administrative web interface for restoring applications (restorer.php) processed options passed to it. A remote attacker could send a specially-crafted request to restorer.php that would result in the query string being parsed as command line options and arguments. This could lead to arbitrary code execution with the privileges of an arbitrary application. (CVE-2012-5646)

An open redirect flaw was found in restorer.php. A remote attacker able to trick a victim into opening the restorer.php page using a specially-crafted link could redirect the victim to an arbitrary page. (CVE-2012-5647)

* CVE-2012-5583 Missing CN validation of CAS server certificate [#58] (Joachim Fritschi)

joernchen of Phenoelit discovered that rails, an MVC ruby based framework geared for web application development, is not properly treating user-supplied input to "find_by_*" methods. Depending on how the ruby on rails application is using these methods, this allows an attacker to perform SQL injection attacks, e.g., to bypass authentication if Authlogic is used and the session secret token is known.

See this advisory for more information, patches, and workarounds.