SB2015012306 - Input validation error in xen (Alpine package)
Published: January 23, 2015
Security Bulletin ID
SB2015012306
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-2014-8867)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The acceleration support for the "REP MOVS" instruction in Xen 4.4.x, 3.2.x, and earlier lacks properly bounds checking for memory mapped I/O (MMIO) emulated in the hypervisor, which allows local HVM guests to cause a denial of service (host crash) via unspecified vectors.
Remediation
Install update from vendor's website.