Use-after-free in Linux kernel - CVE-2014-2851
Published: April 15, 2014 / Updated: August 11, 2020
Vulnerability identifier: #VU41820
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-2014-2851
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when processing a crafted application that leverages an improperly managed reference counter. A local users can cause a denial of service (use-after-free and system crash) or possibly gain privileges.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Affected software
Linux kernel
How to mitigate CVE-2014-2851
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Links to Public Exploits and PoC-codes
External References
- http://secunia.com/advisories/59386
- http://secunia.com/advisories/59599
- http://www.debian.org/security/2014/dsa-2926
- http://www.openwall.com/lists/oss-security/2014/04/11/4
- http://www.securityfocus.com/bid/66779
- http://www.securitytracker.com/id/1030769
- https://bugzilla.redhat.com/show_bug.cgi?id=1086730
- https://git.kernel.org/cgit/linux/kernel/git/davem/net.git/commit/?id=b04c46190219a4f845e46a459e3102137b7f6cac
- https://lkml.org/lkml/2014/4/10/736