Permissions, Privileges, and Access Controls in Linux kernel - CVE-2013-4300
Published: September 25, 2013 / Updated: August 10, 2020
Vulnerability identifier: #VU42533
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2013-4300
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Linux kernel
Ubuntu
linux (Ubuntu package)
linux-lts-raring (Ubuntu package)
Ubuntu
linux (Ubuntu package)
linux-lts-raring (Ubuntu package)
How to mitigate CVE-2013-4300
Install update from vendor's website.
linux (Ubuntu package) - update to 3.8.0-32.47
linux-lts-raring (Ubuntu package) - update to 3.8.0-32.47~precise1
linux-lts-raring (Ubuntu package) - update to 3.8.0-32.47~precise1
External 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