A security issue and a vulnerability have been reported in libvirt, which can be exploited by malicious people to bypass certain security restrictions and cause a DoS (Denial of Service).
1) The libvirt "virNodeDeviceDettach()", "virNodeDeviceReset()", "virDomainRevertToSnapshot()", and "virDomainSnapshotDelete()" API calls are not properly enforcing read-only connections, which can be exploited to e.g. crash the host server.
2) The error reporting mechanism in libvirtd is not thread safe, which can be exploited to cause a crash by triggering errors in multiple threads at the same time.
Solution: Update to version 0.9.0.
Provided and/or discovered by: Red Hat
Original Advisory: libvirt:
Do you have additional information related to this advisory?
Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this
information to firstname.lastname@example.org
Subject: libvirt Security Bypass and Denial of Service Vulnerabilities
No posts yet
You must be logged in to post a comment.
Secunia Customer Login
Not a customer already?
Learn more about how our market leading Vulnerability Management solutions can help you manage risk and ensure compliance.