Not rated
CVE-2021-4145 A NULL pointer dereference issue was found in the block mirror layer of QEMU in versions prior to 6.2.0
Description
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| QEMU | Versions not published |
References
- bugzilla.redhat.com bugzilla.redhat.com
- gitlab.com gitlab.com
- security.netapp.com security.netapp.com
- GLSA-202208-27 security.gentoo.org
Timeline
- Published
- Last modified
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