CVE-2011-0463

Published: 09 April 2011

The ocfs2_prepare_page_for_write function in fs/ocfs2/aops.c in the Oracle Cluster File System 2 (OCFS2) subsystem in the Linux kernel before 2.6.39-rc1 does not properly handle holes that cross page boundaries, which allows local users to obtain potentially sensitive information from uninitialized disk locations by reading a file.

From the Ubuntu security team

Goldwyn Rodrigues discovered that the OCFS2 filesystem did not correctly clear memory when writing certain file holes. A local attacker could exploit this to read uninitialized data from the disk, leading to a loss of privacy.

Priority

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	Upstream	Released (2.6.39~rc1)






	Patches: Upstream: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=272b62c1f0f6f742046e45b50b6fec98860208a0
linux-ec2 Launchpad, Ubuntu, Debian	Upstream	Released (2.6.39~rc1)






linux-fsl-imx51 Launchpad, Ubuntu, Debian	Upstream	Released (2.6.39~rc1)






linux-lts-backport-maverick Launchpad, Ubuntu, Debian	Upstream	Released (2.6.39~rc1)






linux-lts-backport-natty Launchpad, Ubuntu, Debian	Upstream	Released (2.6.39~rc1)






linux-mvl-dove Launchpad, Ubuntu, Debian	Upstream	Released (2.6.39~rc1)






linux-source-2.6.15 Launchpad, Ubuntu, Debian	Upstream	Released (2.6.39~rc1)






linux-ti-omap4 Launchpad, Ubuntu, Debian	Upstream	Released (2.6.39~rc1)

CVE-2011-0463

From the Ubuntu security team

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