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
Link | Resource |
---|---|
https://bugzilla.redhat.com/show_bug.cgi?id=2034602 | Issue Tracking Patch Third Party Advisory |
https://gitlab.com/qemu-project/qemu/-/commit/66fed30c9cd11854fc878a4eceb507e915d7c9cd | Patch Third Party Advisory |
https://security.gentoo.org/glsa/202208-27 | Third Party Advisory |
https://security.netapp.com/advisory/ntap-20220311-0004/ | Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: redhat
Published: 2022-01-25T19:11:14
Updated: 2022-08-14T18:12:08
Reserved: 2021-12-21T00:00:00
Link: CVE-2021-4145
JSON object: View
NVD Information
Status : Analyzed
Published: 2022-01-25T20:15:08.657
Modified: 2022-09-28T19:54:45.107
Link: CVE-2021-4145
JSON object: View
Redhat Information
No data.
CWE