SB2013092503 - Permissions, Privileges, and Access Controls in Linux kernel
Published: September 25, 2013 Updated: August 10, 2020
Security Bulletin ID
SB2013092503
Severity
High
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-2013-4300)
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
The scm_check_creds function in net/core/scm.c in the Linux kernel before 3.11 performs a capability check in an incorrect namespace, which allows local users to gain privileges via PID spoofing.
Remediation
Install update from vendor's website.
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d661684cf6820331feae71146c35da83d794467e
- http://www.openwall.com/lists/oss-security/2013/09/05/3
- http://www.ubuntu.com/usn/USN-1995-1
- http://www.ubuntu.com/usn/USN-1998-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1004736
- https://github.com/torvalds/linux/commit/d661684cf6820331feae71146c35da83d794467e
- https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.11.bz2