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.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2021-34014 | 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. |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 16 Jul 2025 13:45:00 +0000
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2024-08-03T17:16:04.234Z
Reserved: 2021-12-21T00:00:00
Link: CVE-2021-4145
No data.
Status : Modified
Published: 2022-01-25T20:15:08.657
Modified: 2024-11-21T06:36:59.903
Link: CVE-2021-4145
OpenCVE Enrichment
No data.
EUVD