CVE-2012-0044
Vulnerability Summary
Timeline
Description
Integer overflow in the drm_mode_dirtyfb_ioctl function in drivers/gpu/drm/drm_crtc.c in the Direct Rendering Manager (DRM) subsystem in the Linux kernel before 3.1.5 allows local users to gain privileges or cause a denial of service (memory corruption) via a crafted ioctl call.
CVSS Metrics
- v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- v2.0•HIGH•Score: 7.2AV:L/AC:L/Au:N/C:C/I:C/A:C
EPSS Trends
Current EPSS score: 0.06%• Percentile: 18%
Techniques & Countermeasures
- CWE-190•Integer Overflow or Wraparound
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
Affected Systems
- canonical•ubuntu_linux
10.04
- linux•linux_kernel
< 3.0.13 | ≥ 3.1, < 3.1.5
References (9)
- http://www.ubuntu.com/usn/USN-1556-1
- http://rhn.redhat.com/errata/RHSA-2012-0743.html
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1.5
- http://www.ubuntu.com/usn/USN-1555-1
- http://www.openwall.com/lists/oss-security/2012/01/12/1
- http://www.securityfocus.com/bid/51371
- https://bugzilla.redhat.com/show_bug.cgi?id=772894
- https://github.com/torvalds/linux/commit/a5cd335165e31db9dbab636fd29895d41da55dd2
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a5cd335165e31db9dbab636fd29895d41da55dd2