CVE-2012-0044: Integer Overflow
First published: Tue Jan 10 2012(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/linux-2.6 | ||
| Linux Kernel | <3.0.13 | |
| Linux Kernel | >=3.1<3.1.5 | |
| Ubuntu Linux | =10.04 | |
| Ubuntu | =10.04 |
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Reference Links
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a5cd335165e31db9dbab636fd29895d41da55dd2
- http://rhn.redhat.com/errata/RHSA-2012-0743.html
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1.5
- http://www.openwall.com/lists/oss-security/2012/01/12/1
- http://www.securityfocus.com/bid/51371
- http://www.ubuntu.com/usn/USN-1555-1
- http://www.ubuntu.com/usn/USN-1556-1
- https://bugzilla.redhat.com/show_bug.cgi?id=772894
- https://github.com/torvalds/linux/commit/a5cd335165e31db9dbab636fd29895d41da55dd2
- https://launchpad.net/bugs/cve/CVE-2012-0044
- http://git.kernel.org/linus/a5cd335165e31db9dbab636fd29895d41da55dd2
- https://access.redhat.com/security/cve/CVE-2012-0044
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=782683
- https://rhn.redhat.com/errata/RHSA-2012-0333.html
- https://rhn.redhat.com/errata/RHSA-2012-0743.html
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=772894#c11
- https://rhn.redhat.com/errata/RHSA-2012-1042.html
- https://security-tracker.debian.org/tracker/CVE-2012-0044
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0044
- https://nvd.nist.gov/vuln/detail/CVE-2012-0044
- https://ubuntu.com/security/CVE-2012-0044
Frequently Asked Questions
What is the severity of CVE-2012-0044?
CVE-2012-0044 has a medium severity rating, as it can lead to local privilege escalation or denial of service.
How do I fix CVE-2012-0044?
To fix CVE-2012-0044, update the Linux kernel to version 3.1.5 or later.
Which systems are affected by CVE-2012-0044?
CVE-2012-0044 affects Linux kernel versions prior to 3.1.5, including Debian and Ubuntu 10.04.
Can CVE-2012-0044 be exploited remotely?
CVE-2012-0044 requires local access to exploit, so it cannot be exploited remotely.
What components are involved in CVE-2012-0044?
CVE-2012-0044 involves the Direct Rendering Manager (DRM) subsystem in the Linux kernel.
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