{ "id": "CVE-2021-3764", "sourceIdentifier": "secalert@redhat.com", "published": "2022-08-23T16:15:09.837", "lastModified": "2022-08-25T02:33:47.080", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "A memory leak flaw was found in the Linux kernel's ccp_run_aes_gcm_cmd() function that allows an attacker to cause a denial of service. The vulnerability is similar to the older CVE-2019-18808. The highest threat from this vulnerability is to system availability." }, { "lang": "es", "value": "Se ha encontrado un fallo de p\u00e9rdida de memoria en la funci\u00f3n ccp_run_aes_gcm_cmd() del kernel de Linux que permite a un atacante causar una denegaci\u00f3n de servicio. La vulnerabilidad es similar a la anterior CVE-2019-18808. La mayor amenaza de esta vulnerabilidad es la disponibilidad del sistema." } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM" }, "exploitabilityScore": 1.8, "impactScore": 3.6 } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-401" } ] }, { "source": "secalert@redhat.com", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-400" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndIncluding": "5.14.20", "matchCriteriaId": "BBD585C2-3F95-4E2A-BD16-33C3A6211557" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:5.15:-:*:*:*:*:*:*", "matchCriteriaId": "40D9C0D1-0F32-4A2B-9840-1072F5497540" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*", "matchCriteriaId": "E46C74C6-B76B-4C94-A6A4-FD2FFF62D644" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*", "matchCriteriaId": "60134C3A-06E4-48C1-B04F-2903732A4E56" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*", "matchCriteriaId": "0460DA88-8FE1-46A2-9DDA-1F1ABA552E71" } ] } ] } ], "references": [ { "url": "https://access.redhat.com/security/cve/CVE-2021-3764", "source": "secalert@redhat.com", "tags": [ "Third Party Advisory" ] }, { "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1997467", "source": "secalert@redhat.com", "tags": [ "Issue Tracking", "Third Party Advisory" ] }, { "url": "https://github.com/torvalds/linux/commit/505d9dcb0f7ddf9d075e729523a33d38642ae680", "source": "secalert@redhat.com", "tags": [ "Patch", "Third Party Advisory" ] }, { "url": "https://security-tracker.debian.org/tracker/CVE-2021-3764", "source": "secalert@redhat.com", "tags": [ "Third Party Advisory" ] } ] }