SB2014121208 - Input validation error in libvirt
Published: December 12, 2014 Updated: August 9, 2020
Security Bulletin ID
SB2014121208
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-2013-4399)
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
The remoteClientFreeFunc function in daemon/remote.c in libvirt before 1.1.3, when ACLs are used, does not set an identity, which causes event handler removal to be denied and remote attackers to cause a denial of service (use-after-free and crash) by registering an event handler and then closing the connection. <a href="http://cwe.mitre.org/data/definitions/416.html">CWE-416: Use After Free</a>
Remediation
Install update from vendor's website.