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CVE-2011-0463

Published: 9 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

Low

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy
Released (2.6.24-29.90)
karmic Not vulnerable

lucid
Released (2.6.32-32.62)
maverick
Released (2.6.35-30.52)
natty
Released (2.6.38-9.43)
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
dapper Does not exist

hardy Does not exist

karmic Ignored
(end of life)
lucid
Released (2.6.32-316.30)
maverick Ignored
(end of life)
natty Does not exist

upstream
Released (2.6.39~rc1)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Ignored
(end of life)
lucid
Released (2.6.31-609.26)
maverick Does not exist

natty Does not exist

upstream
Released (2.6.39~rc1)
linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Does not exist

lucid
Released (2.6.35-30.54~lucid1)
maverick Does not exist

natty Does not exist

upstream
Released (2.6.39~rc1)
linux-lts-backport-natty
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Not vulnerable
(2.6.38-9.43~lucid1)
maverick Does not exist

natty Does not exist

upstream
Released (2.6.39~rc1)
linux-mvl-dove
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Ignored
(end of life)
lucid
Released (2.6.32-217.34)
maverick
Released (2.6.32-417.34)
natty Does not exist

upstream
Released (2.6.39~rc1)
linux-source-2.6.15
Launchpad, Ubuntu, Debian
dapper Not vulnerable

hardy Does not exist

karmic Does not exist

lucid Does not exist

maverick Does not exist

natty Does not exist

upstream
Released (2.6.39~rc1)
linux-ti-omap4
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Does not exist

lucid Does not exist

maverick
Released (2.6.35-903.23)
natty
Released (2.6.38-1209.13)
upstream
Released (2.6.39~rc1)