SB2014111015 - NULL pointer dereference in Linux kernel x86 kvm
Published: November 10, 2014
Security Bulletin ID
SB2014111015
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
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-2014-8481)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the decode_operand() function in arch/x86/kvm/emulate.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a430c9166312e1aa3d80bce32374233bdbfeba32
- http://secunia.com/advisories/62042
- http://thread.gmane.org/gmane.comp.emulators.kvm.devel/128427
- http://www.openwall.com/lists/oss-security/2014/10/23/7
- https://bugzilla.redhat.com/show_bug.cgi?id=1156615
- https://github.com/torvalds/linux/commit/a430c9166312e1aa3d80bce32374233bdbfeba32