CVE-2010-2803 | Ubuntu

The drm_ioctl function in drivers/gpu/drm/drm_drv.c in the Direct Rendering Manager (DRM) subsystem in the Linux kernel before 2.6.27.53, 2.6.32.x before 2.6.32.21, 2.6.34.x before 2.6.34.6, and 2.6.35.x before 2.6.35.4 allows local users to obtain potentially sensitive information from kernel memory by requesting a large memory-allocation amount.

From the Ubuntu Security Team

Kees Cook discovered that under certain situations the ioctl subsystem for DRM did not properly sanitize its arguments. A local attacker could exploit this to read previously freed kernel memory, leading to a loss of privacy.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
linux	10.10 maverick	Fixed 2.6.35-18.24
	10.04 LTS lucid	Fixed 2.6.32-24.41
	9.10 karmic	Fixed 2.6.31-22.63
	9.04 jaunty	Fixed 2.6.28-19.64
	8.04 LTS hardy	Not affected
	6.06 LTS dapper	Not in release
linux-ec2	10.10 maverick	Ignored
	10.04 LTS lucid	Fixed 2.6.32-308.15
	9.10 karmic	Fixed 2.6.31-307.17
	8.04 LTS hardy	Not in release
	6.06 LTS dapper	Not in release
linux-fsl-imx51	10.10 maverick	Not in release
	10.04 LTS lucid	Fixed 2.6.31-608.19
	9.10 karmic	Fixed 2.6.31-112.30
	8.04 LTS hardy	Not in release
	6.06 LTS dapper	Not in release
linux-mvl-dove	10.10 maverick	Not affected
	10.04 LTS lucid	Fixed 2.6.32-208.24
	9.10 karmic	Fixed 2.6.31-214.30
	8.04 LTS hardy	Not in release
	6.06 LTS dapper	Not in release
linux-source-2.6.15	10.10 maverick	Not in release
	10.04 LTS lucid	Not in release
	9.10 karmic	Not in release
	9.04 jaunty	Not in release
	8.04 LTS hardy	Not in release
	6.06 LTS dapper	Not affected

Notes

smb

No DRM for Hardy and Dapper.

Patch details

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

Package	Patch details
linux	Jaunty: http://chinstrap.ubuntu.com/~smb/CVEs/CVE-2010-2803/patches/jaunty/linux/0001-drm-Initialize-ioctl-struct-when-no-user-data-is-prese.txt Karmic: http://chinstrap.ubuntu.com/~smb/CVEs/CVE-2010-2803/patches/karmic/linux/0001-drm-Initialize-ioctl-struct-when-no-user-data-is-prese.txt Lucid: http://chinstrap.ubuntu.com/~smb/CVEs/CVE-2010-2803/patches/lucid/linux/0001-drm-Initialize-ioctl-struct-when-no-user-data-is-prese.txt

Package

Patch details

linux

References

Related Ubuntu Security Notices (USN)

USN-974-1
Linux kernel vulnerabilities
19 August 2010

USN-1074-1
Linux kernel vulnerabilities
25 February 2011

Other references

https://www.cve.org/CVERecord?id=CVE-2010-2803