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CVE-2021-4145
Published: Jan 25, 2022
Modified: Aug 3, 2024
PUBLISHED
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.
| Vendor | Product | Versions |
|---|---|---|
n/a | QEMU | affected qemu-kvm 6.2.0 |
Weaknesses (CWE)
References
https://bugzilla.redhat.com/show_bug.cgi?id=2034602
x_refsource_MISC
https://security.netapp.com/advisory/ntap-20220311-0004/
x_refsource_CONFIRM
GLSA-202208-27
vendor-advisory
x_refsource_GENTOO
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