USN-1380-1: Linux kernel vulnerabilities
29 February 2012
Several security issues were fixed in the kernel.
Releases
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
Related notices
- USN-1383-1: linux-ti-omap4, linux-image-2.6.38-1209-omap4
- USN-1386-1: linux-lts-backport-natty, linux-image-2.6.38-13-generic, linux-image-2.6.38-13-generic-pae, linux-image-2.6.38-13-server, linux-image-2.6.38-13-virtual
- USN-1364-1: linux-ti-omap4, linux-image-3.0.0-1207-omap4
- USN-1384-1: linux-image-3.0.0-16-generic-pae, linux-lts-backport-oneiric, linux-image-3.0.0-16-generic, linux-image-3.0.0-16-virtual, linux-image-3.0.0-16-server
- USN-1363-1: linux-image-3.0.0-16-generic-pae, linux, linux-image-3.0.0-16-generic, linux-image-3.0.0-16-omap, linux-image-3.0.0-16-powerpc, linux-image-3.0.0-16-virtual, linux-image-3.0.0-16-powerpc64-smp, linux-image-3.0.0-16-server, linux-image-3.0.0-16-powerpc-smp
- USN-1356-1: linux-ti-omap4, linux-image-2.6.38-1209-omap4