{"id":"CVE-2022-2962","details":"A DMA reentrancy issue was found in the Tulip device emulation in QEMU. When Tulip reads or writes to the rx/tx descriptor or copies the rx/tx frame, it doesn't check whether the destination address is its own MMIO address. This can cause the device to trigger MMIO handlers multiple times, possibly leading to a stack or heap overflow. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.","modified":"2026-08-18T15:18:58.059477Z","published":"2022-09-13T19:18:14Z","related":["openSUSE-SU-2024:12393-1"],"database_specific":{"cna_assigner":"redhat","cwe_ids":["CWE-400"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/2xxx/CVE-2022-2962.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/2xxx/CVE-2022-2962.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-2962"},{"type":"REPORT","url":"https://gitlab.com/qemu-project/qemu/-/issues/1171"},{"type":"FIX","url":"https://gitlab.com/qemu-project/qemu/-/commit/36a894aeb64a2e02871016da1c37d4a4ca109182"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/qemu/qemu","events":[{"introduced":"b0ca999a43a22b38158a222233d3f5881648bb4f"},{"last_affected":"621da7789083b80d6f1ff1c0fb499334007b4f51"}],"database_specific":{"cpe":"cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"4.2.0"},{"last_affected":"7.1.0"}],"source":"CPE_RANGE"}},{"type":"GIT","repo":"https://gitlab.com/qemu-project/qemu","events":[{"introduced":"b0ca999a43a22b38158a222233d3f5881648bb4f"},{"fixed":"36a894aeb64a2e02871016da1c37d4a4ca109182"}],"database_specific":{"cpe":"cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"4.2.0"},{"last_affected":"7.1.0"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["Will be fixed in QEMU 7.2.0-rc0","v7.1.0","v7.1.0-rc4","v7.1.0-rc3","v7.1.0-rc2","v7.1.0-rc1","v7.1.0-rc0","v7.0.0","v7.0.0-rc4","v7.0.0-rc3","v7.0.0-rc2","v7.0.0-rc1","v7.0.0-rc0","v6.2.0","v6.2.0-rc4","v6.1.0","v6.2.0-rc3","v6.2.0-rc1","v6.2.0-rc0","v6.0.0","v6.1.0-rc4","v6.1.0-rc3","v6.1.0-rc2","v6.1.0-rc1","v6.1.0-rc0","v6.0.0-rc5","v6.0.0-rc4","v6.0.0-rc3","v6.0.0-rc2","v6.0.0-rc1","v6.0.0-rc0","v5.2.0","v5.2.0-rc4","v5.2.0-rc3","v5.2.0-rc2","v5.2.0-rc1","v5.2.0-rc0","v5.0.0","v5.1.0","v5.1.0-rc3","v5.1.0-rc2","v5.1.0-rc1","v5.1.0-rc0","v4.2.0","v5.0.0-rc4","v5.0.0-rc3","v5.0.0-rc2","v5.0.0-rc1","v5.0.0-rc0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-2962.json","vanir_signatures_modified":"2026-08-18T15:18:58Z","vanir_signatures":[{"source":"https://gitlab.com/qemu-project/qemu@36a894aeb64a2e02871016da1c37d4a4ca109182","target":{"file":"hw/net/tulip.c"},"deprecated":false,"digest":{"line_hashes":["33159858745377908645997765771213700539","87404591472821702745539163954061690588","19419043666085762877338208946949306429","118525739223405489846661017724525931171","94652972890096512091001834816232665381","87404591472821702745539163954061690588","322822004330675076548298562185758055897","204039834203728791100931558873361667713"],"threshold":0.9},"id":"CVE-2022-2962-886a0380","signature_type":"Line","signature_version":"v1"},{"signature_type":"Function","signature_version":"v1","source":"https://gitlab.com/qemu-project/qemu@36a894aeb64a2e02871016da1c37d4a4ca109182","target":{"file":"hw/net/tulip.c","function":"tulip_desc_read"},"deprecated":false,"digest":{"function_hash":"96687268046739572125620693955961275251","length":718},"id":"CVE-2022-2962-d9cbf375"},{"target":{"file":"hw/net/tulip.c","function":"tulip_desc_write"},"deprecated":false,"digest":{"function_hash":"177297676384258436152410763558256028350","length":702},"id":"CVE-2022-2962-fff12b1c","signature_type":"Function","signature_version":"v1","source":"https://gitlab.com/qemu-project/qemu@36a894aeb64a2e02871016da1c37d4a4ca109182"}]}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}