| From: |
| John Johansen <john.johansen@canonical.com> |
| To: |
| ubuntu-security-announce@lists.ubuntu.com |
| Subject: |
| [USN-1606-1] Linux kernel vulnerabilities |
| Date: |
| Thu, 11 Oct 2012 12:01:58 -0700 |
| Message-ID: |
| <507717A6.80004@canonical.com> |
| Archive-link: |
| Article, Thread
|
==========================================================================
Ubuntu Security Notice USN-1606-1
October 11, 2012
linux vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 10.04 LTS
Summary:
Several security issues were fixed in the kernel.
Software Description:
- linux: Linux kernel
Details:
A flaw was found in how the Linux kernel's KVM (Kernel-based Virtual
Machine) subsystem handled MSI (Message Signaled Interrupts). A local
unprivileged user could exploit this flaw to cause a denial of service or
potentially elevate privileges. (CVE-2012-2137)
A flaw was found in how the Linux kernel passed the replacement session
keyring to a child process. An unprivileged local user could exploit this
flaw to cause a denial of service (panic). (CVE-2012-2745)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 10.04 LTS:
linux-image-2.6.32-44-386 2.6.32-44.98
linux-image-2.6.32-44-generic 2.6.32-44.98
linux-image-2.6.32-44-generic-pae 2.6.32-44.98
linux-image-2.6.32-44-ia64 2.6.32-44.98
linux-image-2.6.32-44-lpia 2.6.32-44.98
linux-image-2.6.32-44-powerpc 2.6.32-44.98
linux-image-2.6.32-44-powerpc-smp 2.6.32-44.98
linux-image-2.6.32-44-powerpc64-smp 2.6.32-44.98
linux-image-2.6.32-44-preempt 2.6.32-44.98
linux-image-2.6.32-44-server 2.6.32-44.98
linux-image-2.6.32-44-sparc64 2.6.32-44.98
linux-image-2.6.32-44-sparc64-smp 2.6.32-44.98
linux-image-2.6.32-44-versatile 2.6.32-44.98
linux-image-2.6.32-44-virtual 2.6.32-44.98
After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-generic,
linux-server, linux-powerpc), a standard system upgrade will automatically
perform this as well.
References:
http://www.ubuntu.com/usn/usn-1606-1
CVE-2012-2137, CVE-2012-2745
Package Information:
https://launchpad.net/ubuntu/+source/linux/2.6.32-44.98
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