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CVE-2012-6538

Published: 7 March 2013

The copy_to_user_auth function in net/xfrm/xfrm_user.c in the Linux kernel before 3.6 uses an incorrect C library function for copying a string, which allows local users to obtain sensitive information from kernel heap memory by leveraging the CAP_NET_ADMIN capability.

From the Ubuntu security team

Mathias Krause discovered an information leak in the Linux kernel's xfrm_user copy_to_user_auth function. A local user could exploit this flaw to examine parts of kernel heap memory.

Priority

Low

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
upstream
Released (3.6~rc7)
Patches:
Introduced by

4447bb33f09444920a8f1d89e1540137429351b6

Fixed by 4c87308bdea31a7b4828a51f6156e6f721a1fcc9
linux-armadaxp
Launchpad, Ubuntu, Debian
upstream
Released (3.6~rc7)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
upstream
Released (3.6~rc7)
linux-ec2
Launchpad, Ubuntu, Debian
upstream
Released (3.6~rc7)
linux-flo
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upstream
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linux-fsl-imx51
Launchpad, Ubuntu, Debian
upstream
Released (3.6~rc7)
linux-gke
Launchpad, Ubuntu, Debian
upstream
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linux-goldfish
Launchpad, Ubuntu, Debian
upstream
Released (3.6~rc7)
linux-grouper
Launchpad, Ubuntu, Debian
upstream
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linux-hwe
Launchpad, Ubuntu, Debian
upstream
Released (3.6~rc7)
linux-hwe-edge
Launchpad, Ubuntu, Debian
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linux-linaro-omap
Launchpad, Ubuntu, Debian
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linux-linaro-shared
Launchpad, Ubuntu, Debian
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linux-linaro-vexpress
Launchpad, Ubuntu, Debian
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linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
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linux-lts-backport-oneiric
Launchpad, Ubuntu, Debian
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linux-lts-quantal
Launchpad, Ubuntu, Debian
upstream
Released (3.6~rc7)
linux-lts-raring
Launchpad, Ubuntu, Debian
upstream
Released (3.6~rc7)
linux-lts-trusty
Launchpad, Ubuntu, Debian
upstream
Released (3.6~rc7)
linux-lts-utopic
Launchpad, Ubuntu, Debian
upstream
Released (3.6~rc7)
linux-lts-vivid
Launchpad, Ubuntu, Debian
upstream
Released (3.6~rc7)
linux-lts-wily
Launchpad, Ubuntu, Debian
upstream
Released (3.6~rc7)
linux-lts-xenial
Launchpad, Ubuntu, Debian
upstream
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linux-maguro
Launchpad, Ubuntu, Debian
upstream
Released (3.6~rc7)
linux-mako
Launchpad, Ubuntu, Debian
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linux-manta
Launchpad, Ubuntu, Debian
upstream
Released (3.6~rc7)
linux-mvl-dove
Launchpad, Ubuntu, Debian
upstream
Released (3.6~rc7)
linux-qcm-msm
Launchpad, Ubuntu, Debian
upstream
Released (3.6~rc7)
linux-raspi2
Launchpad, Ubuntu, Debian
upstream
Released (3.6~rc7)
linux-snapdragon
Launchpad, Ubuntu, Debian
upstream
Released (3.6~rc7)
linux-ti-omap4
Launchpad, Ubuntu, Debian
upstream
Released (3.6~rc7)