CVE-2012-4423

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2012-11-19 · updated 2026-06-16

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.

Affected products

libvirt: through 0.10.1; 0.0.1, 0.0.2, 0.0.3, 0.0.4, 0.0.5, 0.0.6 (+64)

References

http://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=b7ff9e696063189a715802d081d55a398663c15a
http://libvirt.org/git/?p=libvirt.git%3Ba=commitdiff%3Bh=f8fbeb50d52520a109d71c8566fed2ea600650ec
http://lists.fedoraproject.org/pipermail/package-announce/2012-October/089976.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090121.html
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

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