{ "id": "CVE-2021-33641", "sourceIdentifier": "securities@openeuler.org", "published": "2023-01-20T21:15:10.803", "lastModified": "2023-02-06T18:55:16.500", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "When processing files, malloc stores the data of the current line. When processing comments, malloc incorrectly accesses the released memory (use after free)." } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL" }, "exploitabilityScore": 3.9, "impactScore": 5.9 } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-416" } ] }, { "source": "securities@openeuler.org", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-416" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:openeuler:byacc:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.9.20200330", "matchCriteriaId": "C2399FF0-CD0D-4170-B923-1F3F7236B081" }, { "vulnerable": true, "criteria": "cpe:2.3:a:openeuler:byacc:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.0", "versionEndExcluding": "2.0.20210808", "matchCriteriaId": "C944FA70-29B9-4A7B-B811-105C327BC3D6" } ] } ] } ], "references": [ { "url": "https://gitee.com/src-openeuler/byacc/commit/50225f48c6b53e9d7c936681a06682404cb8ec4d", "source": "securities@openeuler.org", "tags": [ "Permissions Required", "Third Party Advisory" ] } ] }