USN-1380-1: Linux kernel vulnerabilities

Releases

• Ubuntu 11.04

Packages

• linux - Linux kernel

Details

A flaw was discovered in the TOMOYO LSM's handling of mount system calls.
An unprivileged user could oops the system causing a denial of service.
(CVE-2011-2518)

A bug was discovered in the Linux kernel's calculation of OOM (Out of
memory) scores, that would result in the wrong process being killed. A user
could use this to kill the process with the highest OOM score, even if that
process belongs to another user or the system. (CVE-2011-4097)

A flaw was found in the linux kernels IPv4 IGMP query processing. A remote
attacker could exploit this to cause a denial of service. (CVE-2012-0207)

Update instructions

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

Ubuntu 11.04

• linux-image-2.6.38-13-powerpc - 2.6.38-13.56
• linux-image-2.6.38-13-powerpc64-smp - 2.6.38-13.56
• linux-image-2.6.38-13-generic-pae - 2.6.38-13.56
• linux-image-2.6.38-13-versatile - 2.6.38-13.56
• linux-image-2.6.38-13-generic - 2.6.38-13.56
• linux-image-2.6.38-13-virtual - 2.6.38-13.56
• linux-image-2.6.38-13-server - 2.6.38-13.56
• linux-image-2.6.38-13-omap - 2.6.38-13.56
• linux-image-2.6.38-13-powerpc-smp - 2.6.38-13.56

After a standard system update you need to reboot your computer to make
all the necessary changes.

References

• CVE-2011-2518
• CVE-2011-4097
• CVE-2012-0207

Related notices

• USN-1383-1
• USN-1386-1
• USN-1364-1
• USN-1384-1
• USN-1363-1
• USN-1356-1