CVE-2010-3296

Published: 30 September 2010

The cxgb_extension_ioctl function in drivers/net/cxgb3/cxgb3_main.c in the Linux kernel before 2.6.36-rc5 does not properly initialize a certain structure member, which allows local users to obtain potentially sensitive information from kernel stack memory via a CHELSIO_GET_QSET_NUM ioctl call.

From the Ubuntu Security Team

Dan Rosenberg discovered that several network ioctls did not clear kernel memory correctly. A local user could exploit this to read kernel stack memory, leading to a loss of privacy.

Priority

Status

Package	Release	Status
linux-source-2.6.15 Launchpad, Ubuntu, Debian	dapper	Not vulnerable
	hardy	Does not exist
	jaunty	Does not exist
	upstream	Released (2.6.36~rc5)
	karmic	Does not exist
	lucid	Does not exist
	maverick	Does not exist
	natty	Does not exist
linux Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Released (2.6.24-28.82)
	jaunty	Ignored (end of life)
	karmic	Released (2.6.31-22.70)
	lucid	Released (2.6.32-26.46)
	maverick	Released (2.6.35-23.36)
	natty	Not vulnerable (2.6.37-2.9)
	upstream	Released (2.6.36~rc5)
	Patches: upstream: http://git.kernel.org/?p=linux/kernel/git/davem/net-2.6.git;a=commit;h=49c37c0334a9b85d30ab3d6b5d1acb05ef2ef6de hardy: http://chinstrap.ubuntu.com/~ogasawara/CVEs/CVE-2010-3296/patches/hardy/linux/0001-drivers-net-cxgb3-cxgb3_main.c-prevent-reading-uniniti.txt karmic: http://chinstrap.ubuntu.com/~ogasawara/CVEs/CVE-2010-3296/patches/karmic/linux/0001-drivers-net-cxgb3-cxgb3_main.c-prevent-reading-uniniti.txt lucid: http://chinstrap.ubuntu.com/~ogasawara/CVEs/CVE-2010-3296/patches/lucid/linux/0001-drivers-net-cxgb3-cxgb3_main.c-prevent-reading-uniniti.txt maverick: http://chinstrap.ubuntu.com/~ogasawara/CVEs/CVE-2010-3296/patches/maverick/linux/0001-drivers-net-cxgb3-cxgb3_main.c-prevent-reading-uniniti.txt
linux-ec2 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	jaunty	Does not exist
	karmic	Released (2.6.31-307.23)
	lucid	Released (2.6.32-310.19)
	maverick	Ignored (end of life)
	natty	Does not exist
	upstream	Released (2.6.36~rc5)
linux-fsl-imx51 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Released (2.6.31-112.30)
	lucid	Released (2.6.31-608.21)
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.36~rc5)
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 (2.6.35-23.40~lucid1)
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.36~rc5)
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 (2.6.36~rc5)
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
	upstream	Released (2.6.36~rc5)
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	Not vulnerable (2.6.38-1201.2)
	upstream	Released (2.6.36~rc5)

References

Bugs

https://bugzilla.redhat.com/show_bug.cgi?id=633149

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