CVE-2013-2146: Input Validation
First published: Thu Jun 06 2013(Updated: )
arch/x86/kernel/cpu/perf_event_intel.c in the Linux kernel before 3.8.9, when the Performance Events Subsystem is enabled, specifies an incorrect bitmask, which allows local users to cause a denial of service (general protection fault and system crash) by attempting to set a reserved bit.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <=3.8.8 | |
| Linux Kernel | =3.8.0 | |
| Linux Kernel | =3.8.1 | |
| Linux Kernel | =3.8.2 | |
| Linux Kernel | =3.8.3 | |
| Linux Kernel | =3.8.4 | |
| Linux Kernel | =3.8.5 | |
| Linux Kernel | =3.8.6 | |
| Linux Kernel | =3.8.7 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.133-1 6.12.22-1 |
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Reference Links
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f1923820c447e986a9da0fc6bf60c1dccdf0408e
- http://rhn.redhat.com/errata/RHSA-2013-1173.html
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:176
- http://www.openwall.com/lists/oss-security/2013/06/05/23
- https://bugzilla.redhat.com/show_bug.cgi?id=971309
- https://github.com/torvalds/linux/commit/f1923820c447e986a9da0fc6bf60c1dccdf0408e
- https://launchpad.net/bugs/cve/CVE-2013-2146
- https://git.kernel.org/linus/f1923820c447e986a9da0fc6bf60c1dccdf0408e
- https://rhn.redhat.com/errata/RHSA-2013-1173.html
- https://rhn.redhat.com/errata/RHSA-2013-1195.html
- https://rhn.redhat.com/errata/RHSA-2013-1264.html
- https://security-tracker.debian.org/tracker/CVE-2013-2146
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2146
- https://nvd.nist.gov/vuln/detail/CVE-2013-2146
- https://ubuntu.com/security/CVE-2013-2146
Frequently Asked Questions
What is the severity of CVE-2013-2146?
CVE-2013-2146 has a severity rating that indicates it could lead to a denial of service due to system crashes.
How do I fix CVE-2013-2146?
To fix CVE-2013-2146, upgrade your Linux kernel to version 3.8.9 or later.
What causes CVE-2013-2146?
CVE-2013-2146 is caused by an incorrect bitmask specification in the Performance Events Subsystem of the Linux kernel.
Who is affected by CVE-2013-2146?
CVE-2013-2146 affects local users on Linux kernel versions before 3.8.9.
What impact does CVE-2013-2146 have on systems?
The impact of CVE-2013-2146 on systems can include general protection faults and unexpected system crashes.
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