NULL pointer dereference in Linux kernel - CVE-2016-9313
Published: November 28, 2016 / Updated: December 9, 2022
Vulnerability identifier: #VU90675
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2016-9313
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 local non-authenticated attacker to execute arbitrary code.
The vulnerability exists due to NULL pointer dereference within the big_key_init() function in security/keys/big_key.c. A local non-authenticated attacker can execute arbitrary code.
How to mitigate CVE-2016-9313
Install update from vendor's website.
Sources
- http://www.openwall.com/lists/oss-security/2016/07/22/1
- https://github.com/torvalds/linux/commit/7df3e59c3d1df4f87fe874c7956ef7a3d2f4d5fb
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7df3e59c3d1df4f87fe874c7956ef7a3d2f4d5fb
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.7
- http://www.securityfocus.com/bid/94546