USN-1301-1: Linux kernel (Natty backport) vulnerabilities
13 December 2011
Several security issues were fixed in the kernel.
Releases
Packages
- linux-lts-backport-natty - Linux kernel backport from Natty
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)
Nick Bowler discovered the kernel GHASH message digest algorithm
incorrectly handled error conditions. A local attacker could exploit this
to cause a kernel oops. (CVE-2011-4081)
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)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 10.04
-
linux-image-2.6.38-13-virtual
-
2.6.38-13.53~lucid1
-
linux-image-2.6.38-13-server
-
2.6.38-13.53~lucid1
-
linux-image-2.6.38-13-generic-pae
-
2.6.38-13.53~lucid1
-
linux-image-2.6.38-13-generic
-
2.6.38-13.53~lucid1
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-virtual, linux-lts-backport-maverick, linux-image-2.6.35-31-generic, linux-image-2.6.35-31-server, linux-image-2.6.35-31-generic-pae
- 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-lts-backport-oneiric, linux-image-3.0.0-15-generic-pae, linux-image-3.0.0-15-virtual, linux-image-3.0.0-15-server
- USN-1336-1: linux-image-3.0.0-15-powerpc64-smp, linux-image-3.0.0-15-generic, linux, linux-image-3.0.0-15-omap, linux-image-3.0.0-15-generic-pae, linux-image-3.0.0-15-powerpc, linux-image-3.0.0-15-virtual, linux-image-3.0.0-15-powerpc-smp, linux-image-3.0.0-15-server
- USN-1312-1: linux-image-2.6.38-13-generic, linux, linux-image-2.6.38-13-powerpc, linux-image-2.6.38-13-powerpc-smp, linux-image-2.6.38-13-powerpc64-smp, linux-image-2.6.38-13-virtual, linux-image-2.6.38-13-versatile, linux-image-2.6.38-13-omap, linux-image-2.6.38-13-generic-pae, linux-image-2.6.38-13-server
- USN-1303-1: linux-image-2.6.32-421-dove, linux-mvl-dove
- USN-1293-1: linux-image-2.6.35-31-powerpc, linux, linux-image-2.6.35-31-virtual, linux-image-2.6.35-31-generic, linux-image-2.6.35-31-versatile, linux-image-2.6.35-31-powerpc64-smp, linux-image-2.6.35-31-omap, linux-image-2.6.35-31-powerpc-smp, linux-image-2.6.35-31-server, linux-image-2.6.35-31-generic-pae
- USN-1311-1: linux-image-2.6.32-37-powerpc-smp, linux-image-2.6.32-37-sparc64, linux-image-2.6.32-37-generic, linux-image-2.6.32-37-generic-pae, linux-image-2.6.32-37-virtual, linux, linux-image-2.6.32-37-server, linux-image-2.6.32-37-powerpc, linux-image-2.6.32-37-powerpc64-smp, linux-image-2.6.32-37-preempt, linux-image-2.6.32-37-sparc64-smp, linux-image-2.6.32-37-ia64, linux-image-2.6.32-37-versatile, linux-image-2.6.32-37-lpia, linux-image-2.6.32-37-386
- USN-1330-1: linux-image-3.0.0-1206-omap4, linux-ti-omap4
- USN-1300-1: linux-image-2.6.31-612-imx51, linux-fsl-imx51
- USN-1304-1: linux-image-2.6.38-1209-omap4, linux-ti-omap4
- USN-1291-1: linux-image-2.6.24-30-sparc64-smp, linux-image-2.6.24-30-virtual, linux-image-2.6.24-30-xen, linux-image-2.6.24-30-lpiacompat, linux-image-2.6.24-30-386, linux-image-2.6.24-30-generic, linux-image-2.6.24-30-openvz, linux-image-2.6.24-30-hppa32, linux-image-2.6.24-30-mckinley, linux-image-2.6.24-30-rt, linux-image-2.6.24-30-server, linux-image-2.6.24-30-hppa64, linux-image-2.6.24-30-itanium, linux-image-2.6.24-30-sparc64, linux, linux-image-2.6.24-30-powerpc-smp, linux-image-2.6.24-30-powerpc64-smp, linux-image-2.6.24-30-lpia, linux-image-2.6.24-30-powerpc
- USN-1322-1: linux-image-3.0.0-14-server, linux-image-3.0.0-14-omap, linux-image-3.0.0-14-generic, linux-image-3.0.0-14-generic-pae, linux, linux-image-3.0.0-14-powerpc-smp, linux-image-3.0.0-14-powerpc64-smp, linux-image-3.0.0-14-virtual, linux-image-3.0.0-14-powerpc
- USN-1287-1: linux-image-3.0.0-1206-omap4, linux-ti-omap4
- USN-1313-1: linux-image-3.0.0-14-server, linux-image-3.0.0-14-generic, linux-image-3.0.0-14-generic-pae, linux-lts-backport-oneiric, linux-image-3.0.0-14-virtual