CVE-2010-2955

Published: 8 September 2010

The cfg80211_wext_giwessid function in net/wireless/wext-compat.c in the Linux kernel before 2.6.36-rc3-next-20100831 does not properly initialize certain structure members, which allows local users to leverage an off-by-one error in the ioctl_standard_iw_point function in net/wireless/wext-core.c, and obtain potentially sensitive information from kernel heap memory, via vectors involving an SIOCGIWESSID ioctl call that specifies a large buffer size.

From the Ubuntu Security Team

Brad Spengler discovered that the wireless extensions did not correctly validate certain request sizes. 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	Not vulnerable
	jaunty	Released (2.6.28-19.66)
	karmic	Released (2.6.31-22.67)
	lucid	Released (2.6.32-26.47)
	maverick	Released (2.6.35-22.34)
	natty	Not vulnerable (2.6.37-2.9)
	oneiric	Not vulnerable (2.6.39-0.0)
	precise	Not vulnerable (3.1.0-1.1)
	quantal	Not vulnerable (3.4.0-1.1)
	raring	Not vulnerable (3.7.0-0.5)
	saucy	Not vulnerable (3.9.0-0.2)
	trusty	Not vulnerable (3.11.0-12.19)
	upstream	Released (2.6.36~rc4)
	utopic	Not vulnerable (3.13.0-24.46)
	vivid	Not vulnerable (3.16.0-23.31)
	wily	Not vulnerable (3.16.0-23.31)
	Patches: upstream: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=42da2f948d949efd0111309f5827bf0298bcc9a4 jaunty: http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-2955/patches/jaunty/linux/0001-wireless-extensions-fix-kernel-heap-content-leak.txt karmic: http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-2955/patches/karmic/linux/0001-wireless-extensions-fix-kernel-heap-content-leak.txt lucid: http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-2955/patches/lucid/linux/0001-wireless-extensions-fix-kernel-heap-content-leak.txt
linux-armadaxp Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Does not exist
	natty	Does not exist
	oneiric	Does not exist
	precise	Not vulnerable (3.2.0-1600.1)
	quantal	Not vulnerable (3.2.0-1602.5)
	raring	Does not exist
	saucy	Does not exist
	trusty	Does not exist
	upstream	Released (2.6.36~rc4)
	utopic	Does not exist
	vivid	Does not exist
	wily	Does not exist
linux-backports-modules-2.6.24 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Ignored (end of life)
	jaunty	Does not exist
	karmic	Does not exist
	lucid	Does not exist
	maverick	Does not exist
	natty	Does not exist
	oneiric	Does not exist
	precise	Does not exist
	quantal	Does not exist
	raring	Does not exist
	saucy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	utopic	Does not exist
	vivid	Does not exist
	wily	Does not exist
	Patches: hardy: http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-2955/patches/hardy/lbm/0001-wireless-extensions-fix-kernel-heap-content-leak.txt
linux-backports-modules-2.6.28 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	jaunty	Ignored (end of life)
	karmic	Does not exist
	lucid	Does not exist
	maverick	Does not exist
	natty	Does not exist
	oneiric	Does not exist
	precise	Does not exist
	quantal	Does not exist
	raring	Does not exist
	saucy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	utopic	Does not exist
	vivid	Does not exist
	wily	Does not exist
	Patches: jaunty: http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-2955/patches/jaunty/lbm/0001-wireless-extensions-fix-kernel-heap-content-leak.txt
linux-backports-modules-2.6.32 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	jaunty	Does not exist
	karmic	Does not exist
	lucid	Ignored (end of life)
	maverick	Does not exist
	natty	Does not exist
	oneiric	Does not exist
	precise	Does not exist
	quantal	Does not exist
	raring	Does not exist
	saucy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	utopic	Does not exist
	vivid	Does not exist
	wily	Does not exist
	Patches: lucid: http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-2955/patches/lucid/lbm/0001-wireless-extensions-fix-kernel-heap-content-leak.txt
linux-ec2 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	jaunty	Does not exist
	karmic	Released (2.6.31-307.21)
	lucid	Released (2.6.32-310.21)
	maverick	Ignored (end of life)
	natty	Does not exist
	oneiric	Does not exist
	precise	Does not exist
	quantal	Does not exist
	raring	Does not exist
	saucy	Does not exist
	trusty	Does not exist
	upstream	Released (2.6.36~rc4)
	utopic	Does not exist
	vivid	Does not exist
	wily	Does not exist
linux-flo Launchpad, Ubuntu, Debian	lucid	Does not exist
	precise	Does not exist
	quantal	Does not exist
	saucy	Does not exist
	trusty	Does not exist (trusty was not-affected [3.4.0-1.3])
	upstream	Released (2.6.36~rc4)
	utopic	Not vulnerable (3.4.0-3.10)
	vivid	Not vulnerable (3.4.0-3.15)
	wily	Not vulnerable (3.4.0-3.15)
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
	natty	Does not exist
	oneiric	Does not exist
	precise	Does not exist
	quantal	Does not exist
	raring	Does not exist
	saucy	Does not exist
	trusty	Does not exist
	upstream	Released (2.6.36~rc4)
	utopic	Does not exist
	vivid	Does not exist
	wily	Does not exist
linux-goldfish Launchpad, Ubuntu, Debian	lucid	Does not exist
	precise	Does not exist
	quantal	Does not exist
	saucy	Ignored
	trusty	Does not exist (trusty was not-affected [3.4.0-1.9])
	upstream	Released (2.6.36~rc4)
	utopic	Not vulnerable (3.4.0-3.14)
	vivid	Not vulnerable (3.4.0-4.23)
	wily	Not vulnerable (3.4.0-4.23)
linux-grouper Launchpad, Ubuntu, Debian	lucid	Does not exist
	precise	Does not exist
	quantal	Does not exist
	saucy	Ignored
	trusty	Does not exist (trusty was not-affected [3.1.10-8.28])
	upstream	Released (2.6.36~rc4)
	utopic	Not vulnerable (3.1.10-8.28)
	vivid	Does not exist
	wily	Does not exist
linux-lts-backport-maverick Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	jaunty	Does not exist
	karmic	Does not exist
	lucid	Released (2.6.35-22.34~lucid1)
	maverick	Does not exist
	natty	Does not exist
	oneiric	Does not exist
	precise	Does not exist
	quantal	Does not exist
	raring	Does not exist
	saucy	Does not exist
	trusty	Does not exist
	upstream	Released (2.6.36~rc4)
	utopic	Does not exist
	vivid	Does not exist
	wily	Does not exist
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
	oneiric	Does not exist
	precise	Does not exist
	quantal	Does not exist
	raring	Does not exist
	saucy	Does not exist
	trusty	Does not exist
	upstream	Released (2.6.36~rc4)
	utopic	Does not exist
	vivid	Does not exist
	wily	Does not exist
linux-lts-backport-oneiric Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Not vulnerable
	maverick	Does not exist
	natty	Does not exist
	oneiric	Does not exist
	precise	Does not exist
	quantal	Does not exist
	raring	Does not exist
	saucy	Does not exist
	trusty	Does not exist
	upstream	Released (2.6.36~rc4)
	utopic	Does not exist
	vivid	Does not exist
	wily	Does not exist
linux-lts-quantal Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Does not exist
	oneiric	Does not exist
	precise	Not vulnerable (3.5.0-18.29~precise1)
	quantal	Does not exist
	raring	Does not exist
	saucy	Does not exist
	trusty	Does not exist
	upstream	Released (2.6.36~rc4)
	utopic	Does not exist
	vivid	Does not exist
	wily	Does not exist
linux-lts-raring Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Does not exist
	oneiric	Does not exist
	precise	Not vulnerable (3.8.0-19.30~precise1)
	quantal	Does not exist
	raring	Does not exist
	saucy	Does not exist
	trusty	Does not exist
	upstream	Released (2.6.36~rc4)
	utopic	Does not exist
	vivid	Does not exist
	wily	Does not exist
linux-lts-saucy Launchpad, Ubuntu, Debian	lucid	Does not exist
	precise	Not vulnerable (3.11.0-13.20~precise2)
	quantal	Does not exist
	raring	Does not exist
	saucy	Does not exist
	trusty	Does not exist
	upstream	Released (2.6.36~rc4)
	utopic	Does not exist
	vivid	Does not exist
	wily	Does not exist
linux-lts-trusty Launchpad, Ubuntu, Debian	lucid	Does not exist
	precise	Not vulnerable (3.13.0-24.46~precise1)
	saucy	Does not exist
	trusty	Does not exist
	upstream	Released (2.6.36~rc4)
	utopic	Does not exist
	vivid	Does not exist
	wily	Does not exist
linux-lts-utopic Launchpad, Ubuntu, Debian	lucid	Does not exist
	precise	Does not exist
	trusty	Does not exist (trusty was not-affected [3.16.0-25.33~14.04.2])
	upstream	Released (2.6.36~rc4)
	utopic	Does not exist
	vivid	Does not exist
	wily	Does not exist
linux-lts-vivid Launchpad, Ubuntu, Debian	lucid	Does not exist
	precise	Does not exist
	trusty	Does not exist (trusty was not-affected [3.19.0-18.18~14.04.1])
	upstream	Released (2.6.36~rc4)
	utopic	Does not exist
	vivid	Does not exist
	wily	Does not exist
linux-maguro Launchpad, Ubuntu, Debian	lucid	Does not exist
	precise	Does not exist
	quantal	Does not exist
	saucy	Ignored
	trusty	Does not exist (trusty was not-affected [3.0.0-3.18])
	upstream	Released (2.6.36~rc4)
	utopic	Does not exist
	vivid	Does not exist
	wily	Does not exist
linux-mako Launchpad, Ubuntu, Debian	lucid	Does not exist
	precise	Does not exist
	quantal	Does not exist
	saucy	Ignored
	trusty	Does not exist (trusty was not-affected [3.4.0-3.21])
	upstream	Released (2.6.36~rc4)
	utopic	Not vulnerable (3.4.0-5.28)
	vivid	Not vulnerable (3.4.0-5.34)
	wily	Not vulnerable (3.4.0-5.34)
linux-manta Launchpad, Ubuntu, Debian	lucid	Does not exist
	precise	Does not exist
	quantal	Does not exist
	saucy	Ignored
	trusty	Does not exist (trusty was not-affected [3.4.0-4.19])
	upstream	Released (2.6.36~rc4)
	utopic	Not vulnerable (3.4.0-6.25)
	vivid	Not vulnerable (3.4.0-6.29)
	wily	Not vulnerable (3.4.0-6.29)
linux-mvl-dove Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Ignored (end of life)
	lucid	Released (2.6.32-213.29)
	maverick	Released (2.6.32-414.30)
	natty	Does not exist
	oneiric	Does not exist
	precise	Does not exist
	quantal	Does not exist
	raring	Does not exist
	saucy	Does not exist
	trusty	Does not exist
	upstream	Released (2.6.36~rc4)
	utopic	Does not exist
	vivid	Does not exist
	wily	Does not exist
linux-raspi2 Launchpad, Ubuntu, Debian	precise	Does not exist
	trusty	Does not exist
	upstream	Released (2.6.36~rc4)
	vivid	Does not exist
	wily	Not vulnerable
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
	natty	Does not exist
	oneiric	Does not exist
	precise	Does not exist
	quantal	Does not exist
	raring	Does not exist
	saucy	Does not exist
	trusty	Does not exist
	upstream	Released (2.6.36~rc4)
	utopic	Does not exist
	vivid	Does not exist
	wily	Does not exist
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)
	oneiric	Not vulnerable (2.6.38-1309.13)
	precise	Not vulnerable (3.0.0-1401.2)
	quantal	Not vulnerable (2.6.38-1309.13)
	raring	Not vulnerable (2.6.38-1309.13)
	saucy	Not vulnerable (3.5.0-223.34)
	trusty	Does not exist
	upstream	Released (2.6.36~rc4)
	utopic	Does not exist
	vivid	Does not exist
	wily	Does not exist

References

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