SB2016021902 - Input validation error in Xen
Published: February 19, 2016 Updated: July 28, 2020
Security Bulletin ID
SB2016021902
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2016-2270)
The vulnerability allows a remote privileged user to a crash the entire system.
Xen 4.6.x and earlier allows local guest administrators to cause a denial of service (host reboot) via vectors related to multiple mappings of MMIO pages with different cachability settings.
Remediation
Install update from vendor's website.
References
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177990.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178518.html
- http://www.debian.org/security/2016/dsa-3519
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- http://www.securitytracker.com/id/1035042
- http://xenbits.xen.org/xsa/advisory-154.html
- https://security.gentoo.org/glsa/201604-03