USN-1324-1: Linux kernel (EC2) vulnerabilities

Releases

• Ubuntu 10.04

Packages

• linux-ec2 - Linux kernel for EC2

Details

Clement Lecigne discovered a bug in the HFS filesystem. A local attacker
could exploit this to cause a kernel oops. (CVE-2011-2203)

A flaw was found in how the Linux kernel handles user-defined key types. An
unprivileged local user could exploit this to crash the system.
(CVE-2011-4110)

Update instructions

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

Ubuntu 10.04

• linux-image-2.6.32-342-ec2 - 2.6.32-342.43

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-2011-2203
• CVE-2011-4110

Related notices

• USN-1319-1: linux-ti-omap4, linux-image-2.6.38-1209-omap4
• USN-1318-1: linux-image-2.6.31-612-imx51, linux-fsl-imx51
• USN-1337-1: linux-image-2.6.38-13-server, linux-image-2.6.38-13-virtual, linux-lts-backport-natty, linux-image-2.6.38-13-generic, linux-image-2.6.38-13-generic-pae
• USN-1341-1: linux, linux-image-2.6.35-32-generic, linux-image-2.6.35-32-powerpc64-smp, linux-image-2.6.35-32-server, linux-image-2.6.35-32-powerpc, linux-image-2.6.35-32-generic-pae, linux-image-2.6.35-32-versatile, linux-image-2.6.35-32-virtual, linux-image-2.6.35-32-omap, linux-image-2.6.35-32-powerpc-smp
• USN-1340-1: linux-image-3.0.0-15-generic, linux-image-3.0.0-15-generic-pae, linux-image-3.0.0-15-server, linux-image-3.0.0-15-virtual, linux-lts-backport-oneiric
• USN-1332-1: linux-image-2.6.35-32-generic, linux-image-2.6.35-32-server, linux-lts-backport-maverick, linux-image-2.6.35-32-generic-pae, linux-image-2.6.35-32-virtual
• USN-1328-1: linux-image-2.6.32-422-dove, linux-mvl-dove
• USN-1325-1: linux-image-2.6.35-903-omap4, linux-ti-omap4
• USN-1336-1: linux, linux-image-3.0.0-15-generic-pae, linux-image-3.0.0-15-generic, linux-image-3.0.0-15-powerpc, linux-image-3.0.0-15-powerpc-smp, linux-image-3.0.0-15-server, linux-image-3.0.0-15-virtual, linux-image-3.0.0-15-powerpc64-smp, linux-image-3.0.0-15-omap
• USN-1344-1: linux, linux-image-2.6.32-38-preempt, linux-image-2.6.32-38-generic-pae, linux-image-2.6.32-38-ia64, linux-image-2.6.32-38-server, linux-image-2.6.32-38-sparc64, linux-image-2.6.32-38-powerpc, linux-image-2.6.32-38-sparc64-smp, linux-image-2.6.32-38-386, linux-image-2.6.32-38-virtual, linux-image-2.6.32-38-generic, linux-image-2.6.32-38-powerpc-smp, linux-image-2.6.32-38-lpia, linux-image-2.6.32-38-powerpc64-smp, linux-image-2.6.32-38-versatile
• USN-1330-1: linux-ti-omap4, linux-image-3.0.0-1206-omap4
• USN-1323-1: linux, linux-image-2.6.24-30-server, linux-image-2.6.24-30-virtual, linux-image-2.6.24-30-generic, linux-image-2.6.24-30-386, linux-image-2.6.24-30-powerpc-smp, linux-image-2.6.24-30-powerpc64-smp, linux-image-2.6.24-30-rt, linux-image-2.6.24-30-powerpc, linux-image-2.6.24-30-sparc64, linux-image-2.6.24-30-lpia, linux-image-2.6.24-30-mckinley, linux-image-2.6.24-30-hppa64, linux-image-2.6.24-30-sparc64-smp, linux-image-2.6.24-30-xen, linux-image-2.6.24-30-hppa32, linux-image-2.6.24-30-itanium, linux-image-2.6.24-30-lpiacompat, linux-image-2.6.24-30-openvz
• USN-1345-1: linux, linux-image-2.6.38-13-versatile, linux-image-2.6.38-13-server, linux-image-2.6.38-13-powerpc-smp, linux-image-2.6.38-13-powerpc64-smp, linux-image-2.6.38-13-virtual, linux-image-2.6.38-13-powerpc, linux-image-2.6.38-13-generic, linux-image-2.6.38-13-omap, linux-image-2.6.38-13-generic-pae