NULL pointer dereference in Linux kernel - CVE-2013-0313
Published: February 22, 2013 / Updated: August 11, 2020
Vulnerability identifier: #VU43080
CSH Severity: Medium
CVSS v4: 7.5 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2013-0313
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via an attempted removexattr operation on an inode of a sockfs filesystem.
Affected software
Linux kernel
Ubuntu
linux (Ubuntu package)
linux-lts-quantal (Ubuntu package)
Ubuntu
linux (Ubuntu package)
linux-lts-quantal (Ubuntu package)
How to mitigate CVE-2013-0313
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
linux (Ubuntu package) - addressed in versions 3.2.0-39.62, 3.5.0-26.42
linux-lts-quantal (Ubuntu package) - update to 3.5.0-26.42~precise1
linux-lts-quantal (Ubuntu package) - update to 3.5.0-26.42~precise1
External References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a67adb997419fb53540d4a4f79c6471c60bc69b6
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.5
- http://www.openwall.com/lists/oss-security/2013/02/20/16
- https://bugzilla.redhat.com/show_bug.cgi?id=913266
- https://github.com/torvalds/linux/commit/a67adb997419fb53540d4a4f79c6471c60bc69b6