Description
libvirtd in libvirt before 0.9.0 does not use thread-safe error reporting, which allows remote attackers to cause a denial of service (crash) by causing multiple threads to report errors at the same time.
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 | 0.9.0-1 | — |
| Debian 13 | libvirt | 0.9.0-1 | — |
| Debian 12 | libvirt | 0.9.0-1 | — |
| Debian 6.0 | libvirt | 0.8.3-5+squeeze2 | DSA-2280-1 |
| Debian 5.0 | libvirt | 0.4.6-10+lenny2 | DSA-2280-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | libvirt +3 | 0.8.1-27.el6_0.6 | RHSA-2011:0479 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Virtualization 5 | libvirt +2 | 0.8.2-15.el5_6.4 | RHSA-2011:0478 |
Advisories 3
- RHSA-2011:0479 Red Hat Security Advisory: libvirt security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-2280-1 libvirt - several Debian Security (DSA / DLA) · Mar 9, 2026
- RHSA-2011:0478 Red Hat Security Advisory: libvirt security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
References
- http://support.avaya.com/css/P8/documents/100134583
- 44459 third-party-advisory
- RHSA-2011:0479 vendor-advisory
- http://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=f44bfb7fb978c9313ce050a1c4149bf04aa0a670
- 1025477 vdb-entry
- 47148 vdb-entry
- USN-1152-1 vendor-advisory
- RHSA-2011:0478 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=693391
- [libvirt] 20110323 [PATCH] Make error reporting in libvirtd thread safe mailing-list
- DSA-2280 vendor-advisory