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Ubuntu Security Notice USN-1312-1

Posted Dec 19, 2011

Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1312-1 - 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. Nick Bowler discovered the kernel GHASH message digest algorithm incorrectly handled error conditions. A local attacker could exploit this to cause a kernel oops. 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. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local, root

systems | linux, ubuntu

advisories | CVE-2011-4077, CVE-2011-4081, CVE-2011-4132, CVE-2011-4330

SHA-256 | 3aeab52346bf4f6a1ad62c8d618495f6f4e27104c5519860741dab5b42e4dde7

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