NULL Pointer Dereference Affecting libguestfs-rsync package, versions <1:1.40.2-28.0.1.module+el8.5.0+20514+67db989a
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-ORACLE8-LIBGUESTFSRSYNC-2812763
- published 30 Apr 2022
- disclosed 25 Jan 2022
Introduced: 25 Jan 2022
CVE-2021-4145 Open this link in a new tabHow to fix?
Upgrade Oracle:8 libguestfs-rsync to version 1:1.40.2-28.0.1.module+el8.5.0+20514+67db989a or higher.
This issue was patched in ELSA-2022-9364.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libguestfs-rsync package and not the libguestfs-rsync package as distributed by Oracle.
See How to fix? for Oracle:8 relevant fixed versions and status.
A NULL pointer dereference issue was found in the block mirror layer of QEMU in versions prior to 6.2.0. The self pointer is dereferenced in mirror_wait_on_conflicts() without ensuring that it's not NULL. A malicious unprivileged user within the guest could use this flaw to crash the QEMU process on the host when writing data reaches the threshold of mirroring node.
References
- https://linux.oracle.com/cve/CVE-2021-4145.html
- https://linux.oracle.com/errata/ELSA-2022-1759.html
- https://linux.oracle.com/errata/ELSA-2022-9344.html
- https://linux.oracle.com/errata/ELSA-2022-9364.html
- https://bugzilla.redhat.com/show_bug.cgi?id=2034602
- https://gitlab.com/qemu-project/qemu/-/commit/66fed30c9cd11854fc878a4eceb507e915d7c9cd
- https://security.netapp.com/advisory/ntap-20220311-0004/
- https://security.gentoo.org/glsa/202208-27