CVE-2010-4076

Publication date 29 November 2010

Last updated 24 July 2024

The rs_ioctl function in drivers/char/amiserial.c in the Linux kernel 2.6.36.1 and earlier 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 multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy.

Read the notes from the security team

Status

Show unmaintained releases

No maintained releases are affected by this CVE.

Package	Ubuntu Release	Status
linux	11.04 natty	Not affected
	10.10 maverick	Fixed 2.6.35-30.55
	10.04 LTS lucid	Fixed 2.6.32-34.73
	9.10 karmic	Ignored end of life, was needs-triage
	8.04 LTS hardy	Fixed 2.6.24-29.91
	6.06 LTS dapper	Not in release
linux-ec2	11.04 natty	Not in release
	10.10 maverick	Ignored end of life
	10.04 LTS lucid	Fixed 2.6.32-318.37
	9.10 karmic	Ignored end of life, was needs-triage
	8.04 LTS hardy	Not in release
	6.06 LTS dapper	Not in release
linux-fsl-imx51	11.04 natty	Not in release
	10.10 maverick	Not in release
	10.04 LTS lucid	Fixed 2.6.31-610.27
	9.10 karmic	Ignored end of life
	8.04 LTS hardy	Not in release
	6.06 LTS dapper	Not in release
linux-lts-backport-maverick	11.04 natty	Not in release
	10.10 maverick	Not in release
	10.04 LTS lucid	Fixed 2.6.35-30.55~lucid1
	9.10 karmic	Not in release
	8.04 LTS hardy	Not in release
	6.06 LTS dapper	Not in release
linux-lts-backport-natty	11.04 natty	Not in release
	10.10 maverick	Not in release
	10.04 LTS lucid	Not affected
	8.04 LTS hardy	Not in release
linux-mvl-dove	11.04 natty	Not in release
	10.10 maverick	Fixed 2.6.32-418.35
	10.04 LTS lucid	Fixed 2.6.32-218.35
	9.10 karmic	Ignored end of life
	8.04 LTS hardy	Not in release
	6.06 LTS dapper	Not in release
linux-source-2.6.15	11.04 natty	Not in release
	10.10 maverick	Not in release
	10.04 LTS lucid	Not in release
	9.10 karmic	Not in release
	8.04 LTS hardy	Not in release
	6.06 LTS dapper	Ignored
linux-ti-omap4	11.04 natty	Not affected
	10.10 maverick	Fixed 2.6.35-903.23
	10.04 LTS lucid	Not in release
	9.10 karmic	Not in release
	8.04 LTS hardy	Not in release
	6.06 LTS dapper	Not in release

Notes

jdstrand

dapper_linux-source-2.6.15 was marked as pending but was not applied in 2.6.15-57.94. Marked down to ‘needed’

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
linux	Upstream: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d281da7ff6f70efca0553c288bb883e8605b3862 Upstream: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0587102cf9f427c185bfdeb2cef41e13ee0264b1

References

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