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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | libvirt | 0.9.12-5 | — |
| Debian 13 | libvirt | 0.9.12-5 | — |
| Debian 12 | libvirt | 0.9.12-5 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | libvirt +4 | 0.9.10-21.el6_3.5 | RHSA-2012:1359 |
Advisories 1
- RHSA-2012:1359 Red Hat Security Advisory: libvirt security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- http://libvirt.org/git/?p=libvirt.git%3Ba=commitdiff%3Bh=f8fbeb50d52520a109d71c8566fed2ea600650ec
- http://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=b7ff9e696063189a715802d081d55a398663c15a
- FEDORA-2012-15640 vendor-advisory
- FEDORA-2012-15634 vendor-advisory
- openSUSE-SU-2013:0274 vendor-advisory
- 1027649 vdb-entry
- https://bugzilla.redhat.com/show_bug.cgi?id=857133
- [libvirt] 20120912 [PATCH] Fix libvirtd crash possibility mailing-list
- 55541 vdb-entry
- RHSA-2012:1359 vendor-advisory
- USN-1708-1 vendor-advisory
- [oss-security] 20120913 Re: CVE Request -- libvirt: null function pointer invocation in virNetServerProgramDispatchCall() mailing-list