Advisory Published

USN-1432-1: Linux kernel vulnerabilities

First published: Tue May 08 2012(Updated: )

A flaw was found in the Linux's kernels ext4 file system when mounted with a journal. A local, unprivileged user could exploit this flaw to cause a denial of service. (CVE-2011-4086) A flaw was discovered in the Linux kernel's cifs file system. An unprivileged local user could exploit this flaw to crash the system leading to a denial of service. (CVE-2012-1090) A flaw was found in the Linux kernel's ext4 file system when mounting a corrupt filesystem. A user-assisted remote attacker could exploit this flaw to cause a denial of service. (CVE-2012-2100) Tetsuo Handa reported a flaw in the OOM (out of memory) killer of the Linux kernel. A local unprivileged user can exploit this flaw to cause system unstability and denial of services. (CVE-2012-4398)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-2.6.38-15-powerpc<2.6.38-15.59
2.6.38-15.59
=11.04
All of
ubuntu/linux-image-2.6.38-15-omap<2.6.38-15.59
2.6.38-15.59
=11.04
All of
ubuntu/linux-image-2.6.38-15-generic-pae<2.6.38-15.59
2.6.38-15.59
=11.04
All of
ubuntu/linux-image-2.6.38-15-server<2.6.38-15.59
2.6.38-15.59
=11.04
All of
ubuntu/linux-image-2.6.38-15-powerpc64-smp<2.6.38-15.59
2.6.38-15.59
=11.04
All of
ubuntu/linux-image-2.6.38-15-virtual<2.6.38-15.59
2.6.38-15.59
=11.04
All of
ubuntu/linux-image-2.6.38-15-versatile<2.6.38-15.59
2.6.38-15.59
=11.04
All of
ubuntu/linux-image-2.6.38-15-generic<2.6.38-15.59
2.6.38-15.59
=11.04
All of
ubuntu/linux-image-2.6.38-15-powerpc-smp<2.6.38-15.59
2.6.38-15.59
=11.04

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