USN-1932-1: Linux kernel vulnerabilities
20 August 2013
Several security issues were fixed in the kernel.
Releases
Packages
- linux - Linux kernel
Details
Chanam Park reported a Null pointer flaw in the Linux kernel's Ceph client.
A remote attacker could exploit this flaw to cause a denial of service
(system crash). (CVE-2013-1059)
An information leak was discovered in the Linux kernel's fanotify
interface. A local user could exploit this flaw to obtain sensitive
information from kernel memory. (CVE-2013-2148)
Jonathan Salwan discovered an information leak in the Linux kernel's cdrom
driver. A local user can exploit this leak to obtain sensitive information
from kernel memory if the CD-ROM drive is malfunctioning. (CVE-2013-2164)
Kees Cook discovered a format string vulnerability in the Linux kernel's
disk block layer. A local user with administrator privileges could exploit
this flaw to gain kernel privileges. (CVE-2013-2851)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 12.10
-
linux-image-3.5.0-39-generic
-
3.5.0-39.60
-
linux-image-3.5.0-39-powerpc-smp
-
3.5.0-39.60
-
linux-image-3.5.0-39-highbank
-
3.5.0-39.60
-
linux-image-3.5.0-39-powerpc64-smp
-
3.5.0-39.60
-
linux-image-3.5.0-39-omap
-
3.5.0-39.60
After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-generic,
linux-server, linux-powerpc), a standard system upgrade will automatically
perform this as well.
References
Related notices
- USN-1934-1: linux-ti-omap4, linux-image-3.5.0-231-omap4
- USN-1941-1: linux-image-3.2.0-53-generic-pae, linux, linux-image-3.2.0-53-powerpc64-smp, linux-image-3.2.0-53-powerpc-smp, linux-image-3.2.0-53-omap, linux-image-3.2.0-53-virtual, linux-image-3.2.0-53-generic, linux-image-3.2.0-53-highbank
- USN-1936-1: linux-lts-raring, linux-image-3.8.0-29-generic
- USN-1935-1: linux, linux-image-3.8.0-29-generic
- USN-1933-1: linux-ti-omap4, linux-image-3.5.0-231-omap4
- USN-1942-1: linux-ti-omap4, linux-image-3.2.0-1437-omap4
- USN-1931-1: linux-lts-quantal, linux-image-3.5.0-39-generic
- USN-1929-1: linux-image-3.2.0-52-powerpc64-smp, linux, linux-image-3.2.0-52-powerpc-smp, linux-image-3.2.0-52-omap, linux-image-3.2.0-52-virtual, linux-image-3.2.0-52-highbank, linux-image-3.2.0-52-generic, linux-image-3.2.0-52-generic-pae
- USN-1930-1: linux-ti-omap4, linux-image-3.2.0-1436-omap4
- USN-1912-1: linux-image-2.6.32-50-generic, linux-image-2.6.32-50-sparc64-smp, linux, linux-image-2.6.32-50-versatile, linux-image-2.6.32-50-powerpc64-smp, linux-image-2.6.32-50-powerpc, linux-image-2.6.32-50-powerpc-smp, linux-image-2.6.32-50-virtual, linux-image-2.6.32-50-lpia, linux-image-2.6.32-50-preempt, linux-image-2.6.32-50-386, linux-image-2.6.32-50-sparc64, linux-image-2.6.32-50-generic-pae, linux-image-2.6.32-50-server, linux-image-2.6.32-50-ia64
- USN-1913-1: linux-image-2.6.32-355-ec2, linux-ec2