Vulnerability Description
The virNetServerProgramDispatchCall function in libvirt before 0.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and segmentation fault) via an RPC call with (1) an event as the RPC number or (2) an RPC number whose value is in a "gap" in the RPC dispatch table.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Libvirt | <= 0.10.1 |
References
- http://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=b7ff9e696063189a715802d081d
- http://libvirt.org/git/?p=libvirt.git%3Ba=commitdiff%3Bh=f8fbeb50d52520a109d71c8
- http://lists.fedoraproject.org/pipermail/package-announce/2012-October/089976.ht
- http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090121.ht
- http://lists.opensuse.org/opensuse-security-announce/2013-02/msg00001.html
- http://rhn.redhat.com/errata/RHSA-2012-1359.html
- http://www.openwall.com/lists/oss-security/2012/09/13/14
- http://www.securityfocus.com/bid/55541
- http://www.securitytracker.com/id?1027649
- http://www.ubuntu.com/usn/USN-1708-1
- https://bugzilla.redhat.com/show_bug.cgi?id=857133
- https://www.redhat.com/archives/libvir-list/2012-September/msg00843.html
- http://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=b7ff9e696063189a715802d081d
- http://libvirt.org/git/?p=libvirt.git%3Ba=commitdiff%3Bh=f8fbeb50d52520a109d71c8
- http://lists.fedoraproject.org/pipermail/package-announce/2012-October/089976.ht
FAQ
What is CVE-2012-4423?
CVE-2012-4423 is a vulnerability with a CVSS score of 5.0 (MEDIUM). The virNetServerProgramDispatchCall function in libvirt before 0.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and segmentation fault) via an RPC call with (1) an...
How severe is CVE-2012-4423?
CVE-2012-4423 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2012-4423?
Check the references section above for vendor advisories and patch information. Affected products include: Redhat Libvirt.