Advisory Published

USN-1293-1: Linux kernel vulnerabilities

First published: Thu Dec 08 2011(Updated: )

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) A bug was found in the way headroom check was performed in udp6_ufo_fragment() function. A remote attacker could use this flaw to crash the system. (CVE-2011-4326) 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)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-2.6.35-31-generic-pae<2.6.35-31.63
2.6.35-31.63
=10.10
All of
ubuntu/linux-image-2.6.35-31-omap<2.6.35-31.63
2.6.35-31.63
=10.10
All of
ubuntu/linux-image-2.6.35-31-server<2.6.35-31.63
2.6.35-31.63
=10.10
All of
ubuntu/linux-image-2.6.35-31-powerpc-smp<2.6.35-31.63
2.6.35-31.63
=10.10
All of
ubuntu/linux-image-2.6.35-31-versatile<2.6.35-31.63
2.6.35-31.63
=10.10
All of
ubuntu/linux-image-2.6.35-31-powerpc64-smp<2.6.35-31.63
2.6.35-31.63
=10.10
All of
ubuntu/linux-image-2.6.35-31-generic<2.6.35-31.63
2.6.35-31.63
=10.10
All of
ubuntu/linux-image-2.6.35-31-powerpc<2.6.35-31.63
2.6.35-31.63
=10.10
All of
ubuntu/linux-image-2.6.35-31-virtual<2.6.35-31.63
2.6.35-31.63
=10.10

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