{ "id": "CVE-2023-31436", "sourceIdentifier": "cve@mitre.org", "published": "2023-04-28T02:15:09.007", "lastModified": "2023-05-05T17:24:37.710", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "qfq_change_class in net/sched/sch_qfq.c in the Linux kernel before 6.2.13 allows an out-of-bounds write because lmax can exceed QFQ_MIN_LMAX." } ], "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:H/I:H/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH" }, "exploitabilityScore": 1.8, "impactScore": 5.9 } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-787" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.2.13", "matchCriteriaId": "EA8B36B5-B3EC-431B-B425-1847BE9C994F" } ] } ] } ], "references": [ { "url": "https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.13", "source": "cve@mitre.org", "tags": [ "Mailing List", "Patch" ] }, { "url": "https://github.com/torvalds/linux/commit/3037933448f60f9acb705997eae62013ecb81e0d", "source": "cve@mitre.org", "tags": [ "Patch" ] }, { "url": "https://www.spinics.net/lists/stable-commits/msg294885.html", "source": "cve@mitre.org", "tags": [ "Mailing List", "Patch" ] } ] }