Permissions, Privileges, and Access Controls in Linux kernel - CVE-2013-0268
Published: February 18, 2013 / Updated: August 11, 2020
Vulnerability identifier: #VU43089
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2013-0268
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
The msr_open function in arch/x86/kernel/msr.c in the Linux kernel before 3.7.6 allows local users to bypass intended capability restrictions by executing a crafted application as root, as demonstrated by msr32.c.
How to mitigate CVE-2013-0268
Install update from vendor's website.
Sources
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c903f0456bc69176912dee6dd25c6a66ee1aed00
- http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00018.html
- http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.6
- http://www.openwall.com/lists/oss-security/2013/02/07/12
- https://bugzilla.redhat.com/show_bug.cgi?id=908693
- https://github.com/torvalds/linux/commit/c903f0456bc69176912dee6dd25c6a66ee1aed00