SB2013122701 - Null pointer dereference in Linux kernel
Published: December 27, 2013
Security Bulletin ID
SB2013122701
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Null pointer dereference (CVE-ID: CVE-2011-2519)
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.
Remediation
Install update from vendor's website.