CVE-2021-43311

{"id": "CVE-2021-43311", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2023-03-24T20:15:08.223", "references": [{"url": "https://github.com/upx/upx/issues/380", "tags": ["Exploit", "Issue Tracking", "Patch"], "source": "patrick@puiterwijk.org"}, {"url": "https://github.com/upx/upx/issues/380", "tags": ["Exploit", "Issue Tracking", "Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "patrick@puiterwijk.org", "description": [{"lang": "en", "value": "CWE-119"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "A heap-based buffer overflow was discovered in upx, during the generic pointer 'p' points to an inaccessible address in func get_le32(). The problem is essentially caused in PackLinuxElf32::elf_lookup() at p_lx_elf.cpp:5382."}], "lastModified": "2025-04-11T12:27:55.013", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:upx:upx:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BCD4741F-C03D-4C4B-B793-AC2A89A0F1F1", "versionEndExcluding": "4.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "patrick@puiterwijk.org"}