SB2013021808 - Permissions, Privileges, and Access Controls in Linux kernel
Published: February 18, 2013 Updated: August 11, 2020
Security Bulletin ID
SB2013021808
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2013-0268)
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.
Remediation
Install update from vendor's website.
References
- 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