{"id":"CVE-2021-3735","state":"PUBLISHED","title":"A deadlock issue was found in the AHCI controller device of QEMU. It occurs on a software reset (ahci_reset_port) while handling a host-to-device Register FIS (Frame Information St","description":"A deadlock issue was found in the AHCI controller device of QEMU. It occurs on a software reset (ahci_reset_port) while handling a host-to-device Register FIS (Frame Information Structure) packet from the guest. A privileged user inside the guest could use this flaw to hang the QEMU process on the host, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability.","publishedAt":"2022-08-26T15:25:40.000Z","updatedAt":"2025-02-28T13:07:24.170Z","severity":null,"assigner":"redhat","products":["n/a QEMU"],"affected":[{"vendor":"n/a","product":"QEMU","versions":[{"version":"Not Known","status":"affected"}]}],"references":["https://bugzilla.redhat.com/show_bug.cgi?id=1997184","https://access.redhat.com/security/cve/CVE-2021-3735","https://security-tracker.debian.org/tracker/CVE-2021-3735","https://security.netapp.com/advisory/ntap-20250228-0009/"],"weaknesses":["CWE-667"],"ingestedAt":"2026-10-29T19:48:55.807Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/3xxx/CVE-2021-3735.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-3735","state":"PUBLISHED","datePublished":"2022-08-26T15:25:40.000Z","dateUpdated":"2025-02-28T13:07:24.170Z","assignerShortName":"redhat","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateReserved":"2021-08-25T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A deadlock issue was found in the AHCI controller device of QEMU. It occurs on a software reset (ahci_reset_port) while handling a host-to-device Register FIS (Frame Information Structure) packet from the guest. A privileged user inside the guest could use this flaw to hang the QEMU process on the host, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability."}],"affected":[{"vendor":"n/a","product":"QEMU","versions":[{"version":"Not Known","status":"affected"}]}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1997184","tags":["x_refsource_MISC"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-3735","tags":["x_refsource_MISC"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-3735","tags":["x_refsource_MISC"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-667","description":"CWE-667 - Improper Locking -> CWE-400 - Uncontrolled Resource Consumption","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"redhat","dateUpdated":"2022-08-26T15:25:40.000Z","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1997184","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-3735","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-3735","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://security.netapp.com/advisory/ntap-20250228-0009/"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-02-28T13:07:24.170Z"}}]}}}