USN-1362-1: Linux kernel vulnerabilities

13 February 2012

Several security issues were fixed in the kernel.

Releases

Packages

  • linux - Linux kernel

Details

Han-Wen Nienhuys reported a flaw in the FUSE kernel module. A local user
who can mount a FUSE file system could cause a denial of service.
(CVE-2011-3353)

A flaw was found in KVM's Programmable Interval Timer (PIT). When a virtual
interrupt control is not available a local user could use this to cause a
denial of service by starting a timer. (CVE-2011-4622)

A flaw was discovered in the XFS filesystem. If a local user mounts a
specially crafted XFS image it could potential execute arbitrary code on
the system. (CVE-2012-0038)

Chen Haogang discovered an integer overflow that could result in memory
corruption. A local unprivileged user could use this to crash the system.
(CVE-2012-0044)

Update instructions

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

Ubuntu 11.04

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

Related notices

  • USN-1336-1: linux-image-3.0.0-15-virtual, linux-image-3.0.0-15-powerpc, linux-image-3.0.0-15-generic, linux-image-3.0.0-15-omap, linux-image-3.0.0-15-powerpc64-smp, linux-image-3.0.0-15-powerpc-smp, linux-image-3.0.0-15-server, linux, linux-image-3.0.0-15-generic-pae
  • USN-1391-1: linux-mvl-dove, linux-image-2.6.32-423-dove
  • USN-1556-1: linux-image-2.6.32-347-ec2, linux-ec2
  • USN-1389-1: linux-image-2.6.32-39-sparc64, linux-image-2.6.32-39-lpia, linux-image-2.6.32-39-server, linux-image-2.6.32-39-powerpc64-smp, linux-image-2.6.32-39-powerpc-smp, linux-image-2.6.32-39-virtual, linux-image-2.6.32-39-generic-pae, linux-image-2.6.32-39-ia64, linux-image-2.6.32-39-powerpc, linux-image-2.6.32-39-preempt, linux-image-2.6.32-39-generic, linux, linux-image-2.6.32-39-sparc64-smp, linux-image-2.6.32-39-versatile, linux-image-2.6.32-39-386
  • USN-1330-1: linux-ti-omap4, linux-image-3.0.0-1206-omap4
  • USN-1387-1: linux-image-2.6.35-32-generic-pae, linux-image-2.6.35-32-server, linux-lts-backport-maverick, linux-image-2.6.35-32-generic, linux-image-2.6.35-32-virtual
  • USN-1394-1: linux-image-2.6.35-903-omap4, linux-ti-omap4
  • USN-1356-1: linux-ti-omap4, linux-image-2.6.38-1209-omap4
  • USN-1364-1: linux-image-3.0.0-1207-omap4, linux-ti-omap4
  • USN-1240-1: linux-image-2.6.32-219-dove, linux-mvl-dove
  • USN-1245-1: linux-mvl-dove, linux-image-2.6.32-419-dove
  • USN-1361-1: linux-image-2.6.35-32-generic-pae, linux-image-2.6.35-32-powerpc, linux-image-2.6.35-32-powerpc64-smp, linux-image-2.6.35-32-server, linux-image-2.6.35-32-omap, linux-image-2.6.35-32-powerpc-smp, linux-image-2.6.35-32-versatile, linux, linux-image-2.6.35-32-generic, linux-image-2.6.35-32-virtual
  • USN-1340-1: linux-image-3.0.0-15-virtual, linux-image-3.0.0-15-generic, linux-image-3.0.0-15-server, linux-lts-backport-oneiric, linux-image-3.0.0-15-generic-pae
  • USN-1325-1: linux-image-2.6.35-903-omap4, linux-ti-omap4
  • USN-1555-1: linux-image-2.6.32-42-powerpc, linux-image-2.6.32-42-powerpc-smp, linux-image-2.6.32-42-virtual, linux-image-2.6.32-42-preempt, linux-image-2.6.32-42-generic-pae, linux-image-2.6.32-42-generic, linux-image-2.6.32-42-sparc64, linux-image-2.6.32-42-lpia, linux-image-2.6.32-42-powerpc64-smp, linux-image-2.6.32-42-sparc64-smp, linux-image-2.6.32-42-versatile, linux-image-2.6.32-42-server, linux-image-2.6.32-42-386, linux, linux-image-2.6.32-42-ia64
  • USN-1384-1: linux-image-3.0.0-16-generic, linux-image-3.0.0-16-generic-pae, linux-image-3.0.0-16-virtual, linux-image-3.0.0-16-server, linux-lts-backport-oneiric
  • USN-1253-1: linux-image-2.6.32-35-server, linux-image-2.6.32-35-versatile, linux-image-2.6.32-35-sparc64-smp, linux-image-2.6.32-35-powerpc-smp, linux-image-2.6.32-35-ia64, linux-image-2.6.32-35-generic-pae, linux-image-2.6.32-35-powerpc, linux-image-2.6.32-35-virtual, linux, linux-image-2.6.32-35-powerpc64-smp, linux-image-2.6.32-35-sparc64, linux-image-2.6.32-35-lpia, linux-image-2.6.32-35-preempt, linux-image-2.6.32-35-386, linux-image-2.6.32-35-generic
  • USN-1386-1: linux-image-2.6.38-13-generic-pae, linux-lts-backport-natty, linux-image-2.6.38-13-server, linux-image-2.6.38-13-virtual, linux-image-2.6.38-13-generic
  • USN-1329-1: linux-ti-omap4, linux-image-2.6.38-1209-omap4
  • USN-1239-1: linux-image-2.6.32-319-ec2, linux-ec2
  • USN-1363-1: linux-image-3.0.0-16-omap, linux-image-3.0.0-16-generic, linux-image-3.0.0-16-generic-pae, linux-image-3.0.0-16-virtual, linux-image-3.0.0-16-powerpc, linux-image-3.0.0-16-powerpc-smp, linux, linux-image-3.0.0-16-server, linux-image-3.0.0-16-powerpc64-smp
  • USN-1388-1: linux-image-2.6.32-343-ec2, linux-ec2