{"id":"CVE-2021-20257","state":"PUBLISHED","title":"An infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing transmits (tx) descriptors in process_tx_desc if various descriptor fields","description":"An infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing transmits (tx) descriptors in process_tx_desc if various descriptor fields are initialized with invalid values. This flaw allows a guest to consume CPU cycles on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.","publishedAt":"2022-03-16T14:12:26.000Z","updatedAt":"2024-08-03T17:37:23.120Z","severity":null,"assigner":"redhat","products":["n/a QEMU"],"affected":[{"vendor":"n/a","product":"QEMU","versions":[{"version":"Fixed-In v6.2.0","status":"affected"}]}],"references":["https://www.openwall.com/lists/oss-security/2021/02/25/2","https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg07428.html","https://github.com/qemu/qemu/commit/3de46e6fc489c52c9431a8a832ad8170a7569bd8","https://bugzilla.redhat.com/show_bug.cgi?id=1930087","https://security.netapp.com/advisory/ntap-20220425-0003/","https://security.gentoo.org/glsa/202208-27","https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html"],"weaknesses":["CWE-835"],"ingestedAt":"2026-10-29T19:47:55.610Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/20xxx/CVE-2021-20257.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-20257","state":"PUBLISHED","datePublished":"2022-03-16T14:12:26.000Z","dateUpdated":"2024-08-03T17:37:23.120Z","assignerShortName":"redhat","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateReserved":"2020-12-17T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"An infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing transmits (tx) descriptors in process_tx_desc if various descriptor fields are initialized with invalid values. This flaw allows a guest to consume CPU cycles on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability."}],"affected":[{"vendor":"n/a","product":"QEMU","versions":[{"version":"Fixed-In v6.2.0","status":"affected"}]}],"references":[{"url":"https://www.openwall.com/lists/oss-security/2021/02/25/2","tags":["x_refsource_MISC"]},{"url":"https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg07428.html","tags":["x_refsource_MISC"]},{"url":"https://github.com/qemu/qemu/commit/3de46e6fc489c52c9431a8a832ad8170a7569bd8","tags":["x_refsource_MISC"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1930087","tags":["x_refsource_MISC"]},{"url":"https://security.netapp.com/advisory/ntap-20220425-0003/","tags":["x_refsource_CONFIRM"]},{"url":"https://security.gentoo.org/glsa/202208-27","name":"GLSA-202208-27","tags":["vendor-advisory","x_refsource_GENTOO"]},{"url":"https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html","name":"[debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update","tags":["mailing-list","x_refsource_MLIST"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-835","description":"CWE-835","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"redhat","dateUpdated":"2022-09-05T05:06:44.000Z","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://www.openwall.com/lists/oss-security/2021/02/25/2","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg07428.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://github.com/qemu/qemu/commit/3de46e6fc489c52c9431a8a832ad8170a7569bd8","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1930087","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://security.netapp.com/advisory/ntap-20220425-0003/","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://security.gentoo.org/glsa/202208-27","name":"GLSA-202208-27","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html","name":"[debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update","tags":["mailing-list","x_refsource_MLIST","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T17:37:23.120Z"}}]}}}