A DMA reentrancy issue was found in the NVM Express Controller (NVME) emulation in QEMU. This CVE is similar to CVE-2021-3750 and, just like it, when the reentrancy write triggers the reset function nvme_ctrl_reset(), data structs will be freed leading to a use-after-free issue. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition or, potentially, executing arbitrary code within the context of the QEMU process on the host.
References
Link | Resource |
---|---|
https://access.redhat.com/security/cve/CVE-2021-3929 | Third Party Advisory |
https://bugzilla.redhat.com/show_bug.cgi?id=2020298 | Issue Tracking Patch Third Party Advisory |
https://gitlab.com/qemu-project/qemu/-/commit/736b01642d85be832385 | Patch Third Party Advisory |
https://gitlab.com/qemu-project/qemu/-/issues/556 | Issue Tracking Third Party Advisory |
https://gitlab.com/qemu-project/qemu/-/issues/782 | Exploit Issue Tracking Patch Third Party Advisory |
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XHNN7QJCEQH7AQG5AQP2GEFAQE6K635I/ |
Configurations
History
07 Nov 2023, 03:38
Type | Values Removed | Values Added |
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References |
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01 Oct 2022, 02:28
Type | Values Removed | Values Added |
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CPE | cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* | |
References | (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XHNN7QJCEQH7AQG5AQP2GEFAQE6K635I/ - Mailing List, Third Party Advisory |
23 Sep 2022, 03:15
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References |
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19 Sep 2022, 20:05
Type | Values Removed | Values Added |
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CPE |
31 Aug 2022, 17:33
Type | Values Removed | Values Added |
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References | (MISC) https://access.redhat.com/security/cve/CVE-2021-3929 - Third Party Advisory | |
References | (MISC) https://gitlab.com/qemu-project/qemu/-/commit/736b01642d85be832385 - Patch, Third Party Advisory | |
References | (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=2020298 - Issue Tracking, Patch, Third Party Advisory | |
References | (MISC) https://gitlab.com/qemu-project/qemu/-/issues/556 - Issue Tracking, Third Party Advisory | |
References | (MISC) https://gitlab.com/qemu-project/qemu/-/issues/782 - Exploit, Issue Tracking, Patch, Third Party Advisory | |
CWE | CWE-416 | |
CPE | cpe:2.3:a:qemu:qemu:7.0.0:-:*:*:*:*:*:* cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* |
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First Time |
Fedoraproject
Qemu Qemu qemu Fedoraproject fedora |
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CVSS |
v2 : v3 : |
v2 : unknown
v3 : 8.2 |
25 Aug 2022, 20:15
Type | Values Removed | Values Added |
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New CVE |
Information
Published : 2022-08-25 20:15
Updated : 2023-12-10 14:35
NVD link : CVE-2021-3929
Mitre link : CVE-2021-3929
CVE.ORG link : CVE-2021-3929
JSON object : View
Products Affected
qemu
- qemu
fedoraproject
- fedora
CWE
CWE-416
Use After Free