Vulnerability Description
The qemuAgentCommand function in libvirt before 1.1.1, when a guest agent is not configured, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via vectors related to "agent based cpu (un)plug," as demonstrated by the "virsh vcpucount foobar --guest" command.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Libvirt | <= 1.1.0 |
References
- http://libvirt.org/git/?p=libvirt.git%3Ba=commitdiff%3Bh=96518d4316b711c72205117
- http://libvirt.org/news.html
- http://openwall.com/lists/oss-security/2013/07/19/12Patch
- https://bugzilla.redhat.com/show_bug.cgi?id=984821Exploit
- https://bugzilla.redhat.com/show_bug.cgi?id=986386Patch
- http://libvirt.org/git/?p=libvirt.git%3Ba=commitdiff%3Bh=96518d4316b711c72205117
- http://libvirt.org/news.html
- http://openwall.com/lists/oss-security/2013/07/19/12Patch
- https://bugzilla.redhat.com/show_bug.cgi?id=984821Exploit
- https://bugzilla.redhat.com/show_bug.cgi?id=986386Patch
FAQ
What is CVE-2013-4154?
CVE-2013-4154 is a vulnerability with a CVSS score of 4.3 (MEDIUM). The qemuAgentCommand function in libvirt before 1.1.1, when a guest agent is not configured, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via vectors relat...
How severe is CVE-2013-4154?
CVE-2013-4154 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2013-4154?
Check the references section above for vendor advisories and patch information. Affected products include: Redhat Libvirt.