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
-
linux-image-2.6.38-13-powerpc
-
2.6.38-13.55
-
linux-image-2.6.38-13-powerpc64-smp
-
2.6.38-13.55
-
linux-image-2.6.38-13-generic-pae
-
2.6.38-13.55
-
linux-image-2.6.38-13-versatile
-
2.6.38-13.55
-
linux-image-2.6.38-13-generic
-
2.6.38-13.55
-
linux-image-2.6.38-13-virtual
-
2.6.38-13.55
-
linux-image-2.6.38-13-server
-
2.6.38-13.55
-
linux-image-2.6.38-13-omap
-
2.6.38-13.55
-
linux-image-2.6.38-13-powerpc-smp
-
2.6.38-13.55
After a standard system update you need to reboot your computer to make
all the necessary changes.