USN-2043-1: Linux kernel vulnerabilities

Releases

• Ubuntu 12.10

Packages

• linux - Linux kernel

Details

A flaw was discovered in the Linux kernel's dm snapshot facility. A remote
authenticated user could exploit this flaw to obtain sensitive information
or modify/corrupt data. (CVE-2013-4299)

Hannes Frederic Sowa discovered a flaw in the Linux kernel's UDP
Fragmentation Offload (UFO). An unprivileged local user could exploit this
flaw to cause a denial of service (system crash) or possibly gain
administrative privileges. (CVE-2013-4470)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 12.10

• linux-image-3.5.0-44-generic - 3.5.0-44.67
• linux-image-3.5.0-44-powerpc-smp - 3.5.0-44.67
• linux-image-3.5.0-44-highbank - 3.5.0-44.67
• linux-image-3.5.0-44-powerpc64-smp - 3.5.0-44.67
• linux-image-3.5.0-44-omap - 3.5.0-44.67

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

• CVE-2013-4299
• CVE-2013-4470

Related notices

• USN-2046-1: linux-ti-omap4, linux-image-3.5.0-236-omap4
• USN-2041-1: linux-lts-raring, linux-image-3.8.0-34-generic
• USN-2067-1: linux-image-3.2.0-1442-omap4, linux-ti-omap4
• USN-2042-1: linux-image-3.11.0-14-generic-lpae, linux-lts-saucy, linux-image-3.11.0-14-generic
• USN-2066-1: linux-image-3.2.0-58-generic, linux, linux-image-3.2.0-58-generic-pae, linux-image-3.2.0-58-powerpc64-smp, linux-image-3.2.0-58-powerpc-smp, linux-image-3.2.0-58-virtual, linux-image-3.2.0-58-highbank, linux-image-3.2.0-58-omap
• USN-2045-1: linux, linux-image-3.8.0-34-generic
• USN-2016-1: linux-image-2.6.32-358-ec2, linux-ec2
• USN-2040-1: linux-lts-quantal, linux-image-3.5.0-44-generic
• USN-2015-1: linux-image-2.6.32-53-virtual, linux-image-2.6.32-53-preempt, linux-image-2.6.32-53-ia64, linux-image-2.6.32-53-powerpc64-smp, linux-image-2.6.32-53-generic-pae, linux-image-2.6.32-53-generic, linux-image-2.6.32-53-lpia, linux-image-2.6.32-53-versatile, linux-image-2.6.32-53-sparc64-smp, linux-image-2.6.32-53-server, linux-image-2.6.32-53-powerpc-smp, linux-image-2.6.32-53-powerpc, linux, linux-image-2.6.32-53-386, linux-image-2.6.32-53-sparc64
• USN-2050-1: linux-ti-omap4, linux-image-3.5.0-236-omap4
• USN-2044-1: linux-ti-omap4, linux-image-3.5.0-236-omap4
• USN-2049-1: linux-image-3.11.0-14-generic-lpae, linux-image-3.11.0-14-generic, linux
• USN-2234-1: linux-image-2.6.32-365-ec2, linux-ec2
• USN-2069-1: linux-image-3.8.0-35-generic, linux-lts-raring
• USN-2073-1: linux-image-3.8.0-35-generic, linux
• USN-2233-1: linux-image-2.6.32-61-386, linux-image-2.6.32-61-powerpc, linux-image-2.6.32-61-ia64, linux-image-2.6.32-61-powerpc64-smp, linux-image-2.6.32-61-virtual, linux-image-2.6.32-61-versatile, linux-image-2.6.32-61-powerpc-smp, linux-image-2.6.32-61-server, linux-image-2.6.32-61-generic-pae, linux-image-2.6.32-61-lpia, linux-image-2.6.32-61-sparc64, linux-image-2.6.32-61-generic, linux-image-2.6.32-61-preempt, linux, linux-image-2.6.32-61-sparc64-smp