USN-1597-1: Linux kernel (EC2) vulnerability

Releases

• Ubuntu 10.04

Packages

• linux-ec2 - Linux kernel for EC2

Details

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).

Update instructions

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

Ubuntu 10.04

• linux-image-2.6.32-349-ec2 - 2.6.32-349.55

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-2012-2745

Related notices

• USN-1606-1
• USN-1574-1
• USN-1452-1
• USN-1448-1
• USN-1459-1
• USN-1460-1
• USN-1455-1
• USN-1567-1