CVE-2020-27790

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{"affected": [{"affectedData": [{"product": "upx", "vendor": "n/a", "versions": [{"status": "affected", "version": "Fixed in v3.96."}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:upx:upx:*:*:*:*:*:*:*:*", "matchCriteriaId": "0C4F8C52-D021-4C5C-87B1-DF4B3BAD895B", "versionEndExcluding": "3.96", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A floating point exception issue was discovered in UPX in PackLinuxElf64::invert_pt_dynamic() function of p_lx_elf.cpp file. An attacker with a crafted input file could trigger this issue that could cause a crash leading to a denial of service. The highest impact is to Availability."}, {"lang": "es", "value": "Se ha detectado un problema de excepci\u00f3n de punto flotante en UPX en la funci\u00f3n PackLinuxElf64::invert_pt_dynamic() del archivo p_lx_elf.cpp. Un atacante con un archivo de entrada dise\u00f1ado podr\u00eda desencadenar este problema que podr\u00eda causar un fallo que conlleva una denegaci\u00f3n de servicio. El mayor impacto es la disponibilidad."}], "id": "CVE-2020-27790", "lastModified": "2026-06-17T03:09:38.870", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-08-18T19:15:14.270", "references": [{"source": "secalert@redhat.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/upx/upx/commit/eb90eab6325d009004ffb155e3e33f22d4d3ca26"}, {"source": "secalert@redhat.com", "tags": ["Exploit", "Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://github.com/upx/upx/issues/331"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/upx/upx/commit/eb90eab6325d009004ffb155e3e33f22d4d3ca26"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://github.com/upx/upx/issues/331"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-369"}], "source": "secalert@redhat.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-369"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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