NULL pointer dereference in Linux kernel - CVE-2011-4110
Published: January 27, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU44352
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2011-4110
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 vectors related to a user-defined key and "updating a negative key into a fully instantiated key."
How to mitigate CVE-2011-4110
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Sources
- http://marc.info/?l=bugtraq&m=139447903326211&w=2
- http://secunia.com/advisories/47754
- http://www.openwall.com/lists/oss-security/2011/11/21/19
- http://www.openwall.com/lists/oss-security/2011/11/22/5
- http://www.openwall.com/lists/oss-security/2011/11/22/6
- http://www.securityfocus.com/bid/50755
- http://www.ubuntu.com/usn/USN-1324-1
- http://www.ubuntu.com/usn/USN-1328-1
- http://www.ubuntu.com/usn/USN-1344-1
- https://bugzilla.redhat.com/show_bug.cgi?id=751297
- https://lkml.org/lkml/2011/11/15/363