fkie_cve-2021-20257
Vulnerability from fkie_nvd
Published
2022-03-16 15:15
Modified
2024-11-21 05:46
Severity ?
Summary
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.
References
Impacted products
Vendor | Product | Version | |
---|---|---|---|
qemu | qemu | * | |
fedoraproject | fedora | 33 | |
redhat | openstack_platform | 10.0 | |
redhat | openstack_platform | 13.0 | |
redhat | enterprise_linux | 6.0 | |
redhat | enterprise_linux | 8.0 | |
redhat | enterprise_linux | 8.0 | |
redhat | enterprise_linux_for_ibm_z_systems | 8.0 | |
redhat | enterprise_linux_for_power_little_endian | 8.0 | |
redhat | codeready_linux_builder | - | |
redhat | enterprise_linux | 8.0 | |
redhat | enterprise_linux_for_ibm_z_systems | 8.0 | |
redhat | enterprise_linux_for_power_little_endian | 8.0 | |
debian | debian_linux | 10.0 |
{ "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*", "matchCriteriaId": "AC80F3BA-7E42-4883-9968-EDFC1BBC0695", "versionEndExcluding": "6.2.0", "vulnerable": true } ], "negate": false, "operator": "OR" } ] }, { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "matchCriteriaId": "E460AA51-FCDA-46B9-AE97-E6676AA5E194", "vulnerable": true } ], "negate": false, "operator": "OR" } ] }, { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:a:redhat:openstack_platform:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "542B31BD-5767-4B33-9201-40548D1223B3", "vulnerable": true }, { "criteria": "cpe:2.3:a:redhat:openstack_platform:13.0:*:*:*:*:*:*:*", "matchCriteriaId": "C52600BF-9E87-4CD2-91F3-685AFE478C1E", "vulnerable": true }, { "criteria": "cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*", "matchCriteriaId": "2F6AB192-9D7D-4A9A-8995-E53A9DE9EAFC", "vulnerable": true }, { "criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943", "vulnerable": true }, { "criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:*", "matchCriteriaId": "3AA08768-75AF-4791-B229-AE938C780959", "vulnerable": true }, { "criteria": "cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "87C21FE1-EA5C-498F-9C6C-D05F91A88217", "vulnerable": true }, { "criteria": "cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "47811209-5CE5-4375-8391-B0A7F6A0E420", "vulnerable": true } ], "negate": false, "operator": "OR" } ] }, { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:a:redhat:codeready_linux_builder:-:*:*:*:*:*:*:*", "matchCriteriaId": "1CD81C46-328B-412D-AF4E-68A2AD2F1A73", "vulnerable": true } ], "negate": false, "operator": "OR" }, { "cpeMatch": [ { "criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943", "vulnerable": false }, { "criteria": "cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "87C21FE1-EA5C-498F-9C6C-D05F91A88217", "vulnerable": false }, { "criteria": "cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "47811209-5CE5-4375-8391-B0A7F6A0E420", "vulnerable": false } ], "negate": false, "operator": "OR" } ], "operator": "AND" }, { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "cveTags": [], "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." }, { "lang": "es", "value": "Se ha encontrado un fallo de bucle infinito en el emulador NIC e1000 de QEMU. Este problema se produce mientras son procesados descriptores de transmisi\u00f3n (tx) en la funci\u00f3n process_tx_desc si varios campos del descriptor son inicializados con valores no v\u00e1lidos. Este fallo permite a un hu\u00e9sped consumir ciclos de CPU en el host, resultando en una denegaci\u00f3n de servicio. La mayor amenaza de esta vulnerabilidad es la disponibilidad del sistema" } ], "id": "CVE-2021-20257", "lastModified": "2024-11-21T05:46:13.570", "metrics": { "cvssMetricV2": [ { "acInsufInfo": false, "baseSeverity": "LOW", "cvssData": { "accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 2.1, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0" }, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false } ], "cvssMetricV31": [ { "cvssData": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H", "version": "3.1" }, "exploitabilityScore": 2.0, "impactScore": 4.0, "source": "nvd@nist.gov", "type": "Primary" } ] }, "published": "2022-03-16T15:15:09.983", "references": [ { "source": "secalert@redhat.com", "tags": [ "Issue Tracking", "Patch", "Third Party Advisory" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1930087" }, { "source": "secalert@redhat.com", "tags": [ "Patch", "Third Party Advisory" ], "url": "https://github.com/qemu/qemu/commit/3de46e6fc489c52c9431a8a832ad8170a7569bd8" }, { "source": "secalert@redhat.com", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html" }, { "source": "secalert@redhat.com", "tags": [ "Mailing List", "Patch", "Vendor Advisory" ], "url": "https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg07428.html" }, { "source": "secalert@redhat.com", "tags": [ "Third Party Advisory" ], "url": "https://security.gentoo.org/glsa/202208-27" }, { "source": "secalert@redhat.com", "tags": [ "Third Party Advisory" ], "url": "https://security.netapp.com/advisory/ntap-20220425-0003/" }, { "source": "secalert@redhat.com", "tags": [ "Mailing List", "Patch", "Third Party Advisory" ], "url": "https://www.openwall.com/lists/oss-security/2021/02/25/2" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Issue Tracking", "Patch", "Third Party Advisory" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1930087" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch", "Third Party Advisory" ], "url": "https://github.com/qemu/qemu/commit/3de46e6fc489c52c9431a8a832ad8170a7569bd8" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Mailing List", "Patch", "Vendor Advisory" ], "url": "https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg07428.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ], "url": "https://security.gentoo.org/glsa/202208-27" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ], "url": "https://security.netapp.com/advisory/ntap-20220425-0003/" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Mailing List", "Patch", "Third Party Advisory" ], "url": "https://www.openwall.com/lists/oss-security/2021/02/25/2" } ], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-835" } ], "source": "secalert@redhat.com", "type": "Primary" }, { "description": [ { "lang": "en", "value": "CWE-835" } ], "source": "nvd@nist.gov", "type": "Secondary" } ] }
Loading…
Loading…
Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…