NULL Pointer Dereference Affecting qemu-guest-agent package, versions <17:7.0.0-13.el9
Threat Intelligence
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-ALMALINUX9-QEMUGUESTAGENT-5657060
- published 28 May 2023
- disclosed 15 Nov 2022
Introduced: 15 Nov 2022
CVE-2021-4158 Open this link in a new tabHow to fix?
Upgrade AlmaLinux:9 qemu-guest-agent to version 17:7.0.0-13.el9 or higher.
This issue was patched in ALSA-2022:7967.
NVD Description
Note: Versions mentioned in the description apply only to the upstream qemu-guest-agent package and not the qemu-guest-agent package as distributed by AlmaLinux.
See How to fix? for AlmaLinux:9 relevant fixed versions and status.
A NULL pointer dereference issue was found in the ACPI code of QEMU. A malicious, privileged user within the guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.
References
- https://errata.almalinux.org/8/ALSA-2022-1759.html
- https://errata.almalinux.org/9/ALSA-2022-7967.html
- https://access.redhat.com/security/cve/CVE-2021-4158
- https://vulners.com/cve/CVE-2021-4158
- https://access.redhat.com/errata/RHSA-2022:7967
- https://www.mail-archive.com/qemu-devel@nongnu.org/msg857944.html
- https://access.redhat.com/errata/RHSA-2022:1759
- https://bugzilla.redhat.com/show_bug.cgi?id=2035002
- https://gitlab.com/qemu-project/qemu/-/commit/9bd6565ccee68f72d5012e24646e12a1c662827e
- https://gitlab.com/qemu-project/qemu/-/issues/770
- https://www.mail-archive.com/qemu-devel%40nongnu.org/msg857944.html