SB2014082204 - Resource management error in Xen
Published: August 22, 2014 Updated: July 28, 2020
Security Bulletin ID
SB2014082204
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) Resource management error (CVE-ID: CVE-2014-5149)
The vulnerability allows a local non-authenticated attacker to perform a denial of service (DoS) attack.
Certain MMU virtualization operations in Xen 4.2.x through 4.4.x, when using shadow pagetables, are not preemptible, which allows local HVM guest to cause a denial of service (vcpu consumption) by invoking these operations, which process every page assigned to a guest, a different vulnerability than CVE-2014-5146.
Remediation
Install update from vendor's website.
References
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136980.html
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136981.html
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html
- http://www.securityfocus.com/bid/69199
- http://www.securitytracker.com/id/1030723
- http://xenbits.xen.org/xsa/advisory-97.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/95235
- https://security.gentoo.org/glsa/201504-04