cve-2021-3929
Vulnerability from cvelistv5
Published
2022-08-25 19:36
Modified
2025-02-28 13:07
Severity ?
Summary
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
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2021-3929Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2020298Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://gitlab.com/qemu-project/qemu/-/commit/736b01642d85be832385Patch, Third Party Advisory
secalert@redhat.comhttps://gitlab.com/qemu-project/qemu/-/issues/556Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://gitlab.com/qemu-project/qemu/-/issues/782Exploit, Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XHNN7QJCEQH7AQG5AQP2GEFAQE6K635I/
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2021-3929Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2020298Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/qemu-project/qemu/-/commit/736b01642d85be832385Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/qemu-project/qemu/-/issues/556Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/qemu-project/qemu/-/issues/782Exploit, Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XHNN7QJCEQH7AQG5AQP2GEFAQE6K635I/
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20250228-0010/
Impacted products
Vendor Product Version
n/a QEMU Version: Fixed in qemu-kvm 7.0.0-rc0
Show details on NVD website

To clipboard 

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