CVE-2010-3477

Published: 21 September 2010

The tcf_act_police_dump function in net/sched/act_police.c in the actions implementation in the network queueing functionality in the Linux kernel before 2.6.36-rc4 does not properly initialize certain structure members, which allows local users to obtain potentially sensitive information from kernel memory via vectors involving a dump operation. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-2942.

From the Ubuntu Security Team

Eric Dumazet discovered that many network functions could leak kernel stack contents. A local attacker could exploit this to read portions of kernel memory, leading to a loss of privacy.

Priority

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Released (2.6.24-28.80)
	jaunty	Released (2.6.28-19.66)
	karmic	Released (2.6.31-22.67)
	lucid	Released (2.6.32-25.45)
	maverick	Not vulnerable
	upstream	Released (2.6.36~rc4)
	Patches: upstream: http://git.kernel.org/?p=linux/kernel/git/davem/net-2.6.git;a=commitdiff;h=0f04cfd098fb81fded74e78ea1a1b86cc6c6c31e hardy: http://chinstrap.ubuntu.com/~bradf/CVEs/CVE-2010-3477/patches/hardy/linux/0001-net-sched-fix-kernel-leak-in-act_police.txt jaunty: http://chinstrap.ubuntu.com/~bradf/CVEs/CVE-2010-3477/patches/jaunty/linux/0001-net-sched-fix-kernel-leak-in-act_police.txt karmic: http://chinstrap.ubuntu.com/~bradf/CVEs/CVE-2010-3477/patches/karmic/linux/0001-net-sched-fix-kernel-leak-in-act_police.txt lucid: http://chinstrap.ubuntu.com/~bradf/CVEs/CVE-2010-3477/patches/lucid/linux/0001-net-sched-fix-kernel-leak-in-act_police.txt
linux-ec2 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Released (2.6.31-307.21)
	lucid	Released (2.6.32-309.18)
	maverick	Ignored (end of life)
	upstream	Released (2.6.36~rc4)
linux-fsl-imx51 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Released (2.6.31-112.30)
	lucid	Released (2.6.31-608.22)
	maverick	Does not exist
	upstream	Released (2.6.36~rc4)
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
	upstream	Released (2.6.36~rc4)
linux-mvl-dove Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Ignored (end of life)
	lucid	Released (2.6.32-216.33)
	maverick	Released (2.6.32-416.33)
	upstream	Released (2.6.36~rc4)
linux-source-2.6.15 Launchpad, Ubuntu, Debian	dapper	Not vulnerable
	hardy	Does not exist
	jaunty	Does not exist
	karmic	Does not exist
	lucid	Does not exist
	maverick	Does not exist
	upstream	Released (2.6.36~rc4)

References

Join the discussion

Canonical is offering Expanded Security Maintenance

Canonical is offering Ubuntu Expanded Security Maintenance (ESM) for security fixes and essential packages.

Find out more about ESM ›