NULL pointer dereference in Linux kernel - CVE-2012-6647
Published: May 27, 2014 / Updated: August 10, 2020
Vulnerability identifier: #VU41618
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2012-6647
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
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 a crafted FUTEX_WAIT_REQUEUE_PI command.
How to mitigate CVE-2012-6647
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Sources
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6f7b0a2a5c0fb03be7c25bd1745baa50582348ef
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.5.1
- http://www.openwall.com/lists/oss-security/2014/05/14/9
- https://bugzilla.redhat.com/show_bug.cgi?id=1097746
- https://github.com/torvalds/linux/commit/6f7b0a2a5c0fb03be7c25bd1745baa50582348ef