CVE-2010-3298

Published: 30 September 2010

The hso_get_count function in drivers/net/usb/hso.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 TIOCGICOUNT 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 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Not vulnerable
	jaunty	Ignored (reached end-of-life)
	karmic	Released (2.6.31-22.70)
	lucid	Released (2.6.32-27.49)
	maverick	Released (2.6.35-24.42)
	upstream	Released (2.6.36~rc5)
	Patches: upstream: http://git.kernel.org/?p=linux/kernel/git/davem/net-2.6.git;a=commit;h=7011e660938fc44ed86319c18a5954e95a82ab3e karmic: http://chinstrap.ubuntu.com/~ogasawara/CVEs/CVE-2010-3298/patches/karmic/linux/0001-drivers-net-usb-hso.c-prevent-reading-uninitialized-me.txt lucid: http://chinstrap.ubuntu.com/~ogasawara/CVEs/CVE-2010-3298/patches/lucid/linux/0001-drivers-net-usb-hso.c-prevent-reading-uninitialized-me.txt maverick: http://chinstrap.ubuntu.com/~ogasawara/CVEs/CVE-2010-3298/patches/maverick/linux/0001-drivers-net-usb-hso.c-prevent-reading-uninitialized-me.txt
linux-ec2 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Released (2.6.31-307.23)
	lucid	Released (2.6.32-311.23)
	maverick	Ignored (binary supplied by "linux" now)
	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 (2.6.31-608.22)
	maverick	Does not exist
	upstream	Released (2.6.36~rc5)
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~rc5)
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~rc5)

References

Bugs

https://bugzilla.redhat.com/show_bug.cgi?id=633140

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