Double Free Affecting libvirt-daemon-driver-lxc package, versions <0:5.7.0-21.el7
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Test your applications- Snyk ID SNYK-ORACLE7-LIBVIRTDAEMONDRIVERLXC-2573183
- published 10 Apr 2022
- disclosed 6 Oct 2020
Introduced: 6 Oct 2020
CVE-2020-25637 Open this link in a new tabHow to fix?
Upgrade Oracle:7 libvirt-daemon-driver-lxc to version 0:5.7.0-21.el7 or higher.
This issue was patched in ELSA-2020-5961.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libvirt-daemon-driver-lxc package and not the libvirt-daemon-driver-lxc package as distributed by Oracle.
See How to fix? for Oracle:7 relevant fixed versions and status.
A double free memory issue was found to occur in the libvirt API, in versions before 6.8.0, responsible for requesting information about network interfaces of a running QEMU domain. This flaw affects the polkit access control driver. Specifically, clients connecting to the read-write socket with limited ACL permissions could use this flaw to crash the libvirt daemon, resulting in a denial of service, or potentially escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
References
- https://linux.oracle.com/cve/CVE-2020-25637.html
- https://linux.oracle.com/errata/ELSA-2020-5040.html
- https://linux.oracle.com/errata/ELSA-2020-5961.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1881037
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00073.html
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00072.html
- https://security.gentoo.org/glsa/202210-06
- https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html