| Name | CVE-2019-3840 |
| Description | A NULL pointer dereference flaw was discovered in libvirt before version 5.0.0 in the way it gets interface information through the QEMU agent. An attacker in a guest VM can use this flaw to crash libvirtd and cause a denial of service. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| libvirt (PTS) | jessie, jessie (lts) | 1.2.9-9+deb8u8 | fixed |
| stretch (security) | 3.0.0-4+deb9u5 | vulnerable |
| stretch (lts), stretch | 3.0.0-4+deb9u6 | vulnerable |
| buster (security), buster, buster (lts) | 5.0.0-4+deb10u2 | fixed |
| bullseye | 7.0.0-3+deb11u3 | fixed |
| bookworm | 9.0.0-4+deb12u2 | fixed |
| sid, trixie | 10.9.0-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| libvirt | source | wheezy | (not affected) | | | |
| libvirt | source | jessie | (not affected) | | | |
| libvirt | source | (unstable) | 5.0.0-1 | | | |
Notes
[stretch] - libvirt <no-dsa> (Minor issue)
[jessie] - libvirt <not-affected> (vulnerable code was introduced in 1.2.14)
https://bugzilla.redhat.com/show_bug.cgi?id=1663051
https://www.redhat.com/archives/libvir-list/2019-January/msg00241.html
https://libvirt.org/git/?p=libvirt.git;a=commit;h=7cfd1fbb1332ae5df678b9f41a62156cb2e88c73
[wheezy] - libvirt <not-affected> (vulnerable code was introduced later)