Input validation error in Linux kernel - CVE-2014-3631
Published: September 28, 2014 / Updated: August 11, 2020
Vulnerability identifier: #VU41283
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2014-3631
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows local users to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via multiple "keyctl newring" operations followed by a "keyctl timeout" operation.
Affected software
Linux kernel
Fedora
kernel
Fedora
kernel
How to mitigate CVE-2014-3631
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
kernel - update to 3.16.2-301.fc21
Links to Public Exploits and PoC-codes
External References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=95389b08d93d5c06ec63ab49bd732b0069b7c35e
- http://osvdb.org/show/osvdb/111298
- http://www.exploit-db.com/exploits/36268
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3
- http://www.securityfocus.com/bid/70095
- http://www.ubuntu.com/usn/USN-2378-1
- http://www.ubuntu.com/usn/USN-2379-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1140325
- https://github.com/torvalds/linux/commit/95389b08d93d5c06ec63ab49bd732b0069b7c35e