CVE-2026-58088

{"id": "CVE-2026-58088", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-58088", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-08-19T00:00:00+00:00"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.4, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.4}]}, "affected": [{"source": "secteam@freebsd.org", "affectedData": [{"vendor": "FreeBSD", "modules": ["elf"], "product": "FreeBSD", "versions": [{"status": "affected", "version": "15.1-RELEASE", "lessThan": "p2", "versionType": "release"}, {"status": "affected", "version": "15.0-RELEASE", "lessThan": "p12", "versionType": "release"}, {"status": "affected", "version": "14.4-RELEASE", "lessThan": "p8", "versionType": "release"}], "defaultStatus": "unknown"}]}], "published": "2026-08-19T08:17:12.983", "references": [{"url": "https://security.freebsd.org/advisories/FreeBSD-SA-26:55.elf.asc", "tags": ["Vendor Advisory", "Mailing List"], "source": "secteam@freebsd.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "secteam@freebsd.org", "description": [{"lang": "en", "value": "CWE-362"}, {"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "The ELF core dump code counted the number of dumpable VM map entries, allocated a buffer for the corresponding program headers, then iterated over the map a second time to populate them. A process sharing the address space via rfork(2) can mutate the map between the two passes, causing the second pass to write program headers past the end of the buffer.\n\nAn unprivileged local user sharing an address space with a process that dumps core can trigger an out-of-bounds write on the kernel heap, potentially leading to privilege escalation."}, {"lang": "es", "value": "El c\u00f3digo de volcado de memoria ELF cont\u00f3 el n\u00famero de entradas de mapa de VM volcables, asign\u00f3 un b\u00fafer para los encabezados de programa correspondientes y luego iter\u00f3 sobre el mapa una segunda vez para poblarlos. Un proceso que comparte el espacio de direcciones a trav\u00e9s de rfork(2) puede mutar el mapa entre las dos pasadas, haciendo que la segunda pasada escriba encabezados de programa m\u00e1s all\u00e1 del final del b\u00fafer.\n\nUn usuario local sin privilegios que comparte un espacio de direcciones con un proceso que vuelca memoria puede desencadenar una escritura fuera de l\u00edmites en el heap del kernel, lo que podr\u00eda llevar a una escalada de privilegios."}], "lastModified": "2026-10-27T12:10:00.343", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:freebsd:freebsd:14.4:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8F3856BE-666F-4FA1-A6AD-FE179CEBF1E4"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:14.4:p1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D9CC0037-3282-42C3-80D8-F6C1D43B9332"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:14.4:p2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1EADA828-3C20-43C0-A0CA-3AC7D7F23DBD"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:14.4:p3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "53D73FD2-4B06-47D3-BA2A-4363E9DE3565"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:14.4:p4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D726890B-E679-43A9-A211-D5C05BBE3941"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:14.4:p5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CBE94635-5277-4050-8098-F062091F6596"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:14.4:p6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A66308E4-DA6E-48DB-86E5-A503EE110EAD"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:14.4:p7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "59EF67B4-E572-483B-BC9E-B2D3D8DF19CE"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:14.4:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0342A715-E211-4AF6-97ED-32EB9EBB947D"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "368CFE5D-C5C2-42AF-AAF4-28DFE1A59C3B"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AA4AAA57-70A7-4717-ACF2-A253E757FF2C"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p10:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "683CEB32-A634-4363-86FB-2BDC59724E3E"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p11:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9EC8EE3F-9992-4A0F-A0CD-3B44BA086BD2"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E24ABFA6-4D12-4DE5-832B-438502C7D188"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C1C9869C-494B-4628-9AA3-4AA5B989C377"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "002AA2FE-C7BA-471A-9434-0E56A878ACBF"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B187670D-E3A2-4A0D-A653-982F8B447E78"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "047E7EE9-FB51-4CF2-A8BE-484BFD819565"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2C9768AE-9954-4B2A-9525-D7D4942406E7"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p8:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F8B9EF55-3755-452A-B067-043803099B22"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p9:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EE3C4F40-A117-4B37-8CDD-096A1A763630"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.1:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BD327D43-A2DC-49B5-A578-D2116E1E12F3"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.1:p1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E379873C-DA04-4EAA-ABF6-EB87B4B471A8"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.1:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BF16D01F-95EC-4FE3-B32D-135CB82E8391"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.1:rc3-p1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "75973F7C-645A-438C-A03B-C77AAAD20C15"}], "operator": "OR"}]}], "sourceIdentifier": "secteam@freebsd.org"}