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USN-1291-1: Linux kernel vulnerabilities

8 December 2011

Several security issues were fixed in the kernel.

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Releases

Packages

Details

A bug was discovered in the XFS filesystem's handling of pathnames. A local
attacker could exploit this to crash the system, leading to a denial of
service, or gain root privileges. (CVE-2011-4077)

A flaw was found in the Journaling Block Device (JBD). A local attacker
able to mount ext3 or ext4 file systems could exploit this to crash the
system, leading to a denial of service. (CVE-2011-4132)

Clement Lecigne discovered a bug in the HFS file system bounds checking.
When a malformed HFS file system is mounted a local user could crash the
system or gain root privileges. (CVE-2011-4330)

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

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

Ubuntu 8.04

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

References

Related notices

  • USN-1292-1: linux-image-2.6.35-31-generic, linux-image-2.6.35-31-generic-pae, linux-lts-backport-maverick, linux-image-2.6.35-31-virtual, linux-image-2.6.35-31-server
  • USN-1302-1: linux-image-2.6.35-903-omap4, linux-ti-omap4
  • USN-1299-1: linux-image-2.6.32-341-ec2, linux-ec2
  • USN-1340-1: linux-image-3.0.0-15-generic, linux-image-3.0.0-15-generic-pae, linux-lts-backport-oneiric, linux-image-3.0.0-15-server, linux-image-3.0.0-15-virtual
  • USN-1301-1: linux-image-2.6.38-13-server, linux-image-2.6.38-13-generic, linux-image-2.6.38-13-generic-pae, linux-image-2.6.38-13-virtual, linux-lts-backport-natty
  • USN-1336-1: linux, linux-image-3.0.0-15-powerpc, 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-powerpc-smp, linux-image-3.0.0-15-virtual, linux-image-3.0.0-15-powerpc64-smp, linux-image-3.0.0-15-omap
  • USN-1312-1: linux-image-2.6.38-13-server, linux-image-2.6.38-13-powerpc-smp, linux-image-2.6.38-13-versatile, linux, linux-image-2.6.38-13-omap, linux-image-2.6.38-13-generic, linux-image-2.6.38-13-generic-pae, linux-image-2.6.38-13-powerpc, linux-image-2.6.38-13-virtual, linux-image-2.6.38-13-powerpc64-smp
  • USN-1303-1: linux-image-2.6.32-421-dove, linux-mvl-dove
  • USN-1293-1: linux-image-2.6.35-31-powerpc64-smp, linux-image-2.6.35-31-versatile, linux, linux-image-2.6.35-31-generic, linux-image-2.6.35-31-generic-pae, linux-image-2.6.35-31-powerpc-smp, linux-image-2.6.35-31-powerpc, linux-image-2.6.35-31-virtual, linux-image-2.6.35-31-server, linux-image-2.6.35-31-omap
  • USN-1311-1: linux-image-2.6.32-37-ia64, linux-image-2.6.32-37-sparc64-smp, linux-image-2.6.32-37-powerpc, linux-image-2.6.32-37-powerpc-smp, linux, linux-image-2.6.32-37-powerpc64-smp, linux-image-2.6.32-37-preempt, linux-image-2.6.32-37-versatile, linux-image-2.6.32-37-server, linux-image-2.6.32-37-virtual, linux-image-2.6.32-37-lpia, linux-image-2.6.32-37-386, linux-image-2.6.32-37-generic, linux-image-2.6.32-37-generic-pae, linux-image-2.6.32-37-sparc64
  • USN-1330-1: linux-ti-omap4, linux-image-3.0.0-1206-omap4
  • USN-1300-1: linux-fsl-imx51, linux-image-2.6.31-612-imx51
  • USN-1304-1: linux-image-2.6.38-1209-omap4, linux-ti-omap4

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