SB2016022407 - Input validation error in xen (Alpine package)
Published: February 24, 2016
Security Bulletin ID
SB2016022407
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
- https://git.alpinelinux.org/aports/commit/?id=08e33d0f02c353d47b25b57f4f56a6ba9918fe32
- https://git.alpinelinux.org/aports/commit/?id=7b7ecda52be8a1674088597c992f7faa3ff38f97
- https://git.alpinelinux.org/aports/commit/?id=5c6f6540495a819f4ee6722fa9299f96060b713f
- https://git.alpinelinux.org/aports/commit/?id=9587e8ddfc6cb1922e75282409fec378bee93a86
- https://git.alpinelinux.org/aports/commit/?id=ccba2d08cc9d7de25cfa2eccbe943cb2e4ced400