NULL Pointer Dereference Affecting libvirt-docs package, versions <0:4.5.0-23.el7
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-RHEL7-LIBVIRTDOCS-8009634
- published17 Sept 2024
- disclosed10 Jan 2019
Introduced: 10 Jan 2019
CVE-2019-3840 (opens in a new tab)How to fix?
Upgrade RHEL:7 libvirt-docs to version 0:4.5.0-23.el7 or higher.
This issue was patched in RHSA-2019:2294.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libvirt-docs package and not the libvirt-docs package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
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.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1663051
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3840
- https://www.redhat.com/archives/libvir-list/2019-January/msg00241.html
- https://access.redhat.com/security/cve/CVE-2019-3840
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TZRP2BRMI4RYFRPNFTTIAAUOGVN2ORP7/
- https://access.redhat.com/errata/RHSA-2019:2294
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00101.html
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00105.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TZRP2BRMI4RYFRPNFTTIAAUOGVN2ORP7/