Double Free Affecting qemu-img package, versions <15:4.2.0-48.module+el8.4.0+10368+630e803b
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Test your applications- Snyk ID SNYK-CENTOS8-QEMUIMG-2106842
- published 26 Jul 2021
- disclosed 30 Sep 2020
Introduced: 30 Sep 2020
CVE-2020-25637 Open this link in a new tabHow to fix?
Upgrade Centos:8 qemu-img to version 15:4.2.0-48.module+el8.4.0+10368+630e803b or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream qemu-img package and not the qemu-img package as distributed by Centos.
See How to fix? for Centos:8 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://access.redhat.com/security/cve/CVE-2020-25637
- https://bugzilla.redhat.com/show_bug.cgi?id=1881037
- https://access.redhat.com/errata/RHSA-2021:1762
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00072.html
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00073.html
- https://security.gentoo.org/glsa/202210-06
- https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html