Null pointer dereference in Linux kernel - CVE-2011-2519
Published: December 27, 2013 / Updated: December 8, 2020
Vulnerability identifier: #VU92807
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2011-2519
CWE-ID: CWE-476
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
Xen in the Linux kernel, when running a guest on a host without hardware assisted paging (HAP), allows guest users to cause a denial of service (invalid pointer dereference and hypervisor crash) via the SAHF instruction.
How to mitigate CVE-2011-2519
Install update from vendor's repository.