SB2014010707 - Input validation error in Xen
Published: January 7, 2014 Updated: August 10, 2020
Security Bulletin ID
SB2014010707
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
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-2011-1780)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The instruction emulation in Xen 3.0.3 allows local SMP guest users to cause a denial of service (host crash) by replacing the instruction that causes the VM to exit in one thread with a different instruction in a different thread.
Remediation
Install update from vendor's website.