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CVE-2010-4158

Published: 30 December 2010

The sk_run_filter function in net/core/filter.c in the Linux kernel before 2.6.36.2 does not check whether a certain memory location has been initialized before executing a (1) BPF_S_LD_MEM or (2) BPF_S_LDX_MEM instruction, which allows local users to obtain potentially sensitive information from kernel stack memory via a crafted socket filter.

From the Ubuntu security team

Dan Rosenberg discovered that the socket filters did not correctly initialize structure memory. A local attacker could create malicious filters to read portions of kernel stack memory, leading to a loss of privacy.

Priority

Low

Status

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

hardy
Released (2.6.24-29.87)
karmic
Released (2.6.31-23.74)
lucid
Released (2.6.32-30.59)
maverick
Released (2.6.35-25.43)
natty
Released (2.6.37-5.13)
upstream
Released (2.6.37~rc2)
linux-ec2
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic
Released (2.6.31-308.28)
lucid
Released (2.6.32-314.27)
maverick Ignored
(binary supplied by "linux" now)
natty Does not exist

upstream Ignored

linux-fsl-imx51
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Ignored
(reached end-of-life)
lucid
Released (2.6.31-610.27)
maverick Does not exist

natty Does not exist

upstream
Released (2.6.37~rc2)
linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Does not exist

lucid
Released (2.6.35-25.44~lucid1)
maverick Does not exist

natty Does not exist

upstream Ignored

linux-lts-backport-natty
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Not vulnerable
(2.6.38-1.27~lucid1)
maverick Does not exist

natty Does not exist

upstream
Released (2.6.37~rc2)
linux-mvl-dove
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Ignored
(abandonded branch)
lucid
Released (2.6.32-216.33)
maverick
Released (2.6.32-416.33)
natty Does not exist

upstream Ignored

linux-source-2.6.15
Launchpad, Ubuntu, Debian
dapper
Released (2.6.15-57.94)
hardy Does not exist

karmic Does not exist

lucid Does not exist

maverick Does not exist

natty Does not exist

upstream
Released (2.6.37~rc2)
linux-ti-omap4
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Does not exist

lucid Does not exist

maverick
Released (2.6.35-903.22)
natty Not vulnerable
(2.6.38-1201.2)
upstream Ignored