CVE-2008-3831

Publication date 20 October 2008

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

The i915 driver in (1) drivers/char/drm/i915_dma.c in the Linux kernel 2.6.24 on Debian GNU/Linux and (2) sys/dev/pci/drm/i915_drv.c in OpenBSD does not restrict the DRM_I915_HWS_ADDR ioctl to the Direct Rendering Manager (DRM) master, which allows local users to cause a denial of service (memory corruption) via a crafted ioctl call, related to absence of the DRM_MASTER and DRM_ROOT_ONLY flags in the ioctl's configuration.

From the Ubuntu Security Team

It was discovered the the i915 video driver did not correctly validate memory addresses. A local attacker could exploit this to remap memory that could cause a system crash, leading to a denial of service. This issue did not affect Ubuntu 6.06 and was previous fixed for Ubuntu 7.10 and 8.04 in USN-659-1. Ubuntu 8.10 has now been corrected as well.

Status

Package Ubuntu Release Status
linux 8.10 intrepid
Fixed 2.6.27-9.19
8.04 LTS hardy
Fixed 2.6.24-21.43
7.10 gutsy Not in release
7.04 feisty Not in release
6.06 LTS dapper Not in release
linux-source-2.6.15 8.10 intrepid Not in release
8.04 LTS hardy Not in release
7.10 gutsy Not in release
7.04 feisty Not in release
6.06 LTS dapper
Not affected
linux-source-2.6.20 8.10 intrepid Not in release
8.04 LTS hardy Not in release
7.10 gutsy Not in release
7.04 feisty Ignored end of life, was pending
6.06 LTS dapper Not in release
linux-source-2.6.22 8.10 intrepid Not in release
8.04 LTS hardy Not in release
7.10 gutsy
Fixed 2.6.22-15.59
7.04 feisty Not in release
6.06 LTS dapper Not in release

References

Related Ubuntu Security Notices (USN)

    • USN-659-1
    • Linux kernel vulnerabilities
    • 27 October 2008
    • USN-679-1
    • Linux kernel vulnerabilities
    • 27 November 2008

Other references