CVE-2017-16997

{"id": "CVE-2017-16997", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 9.3, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "MEDIUM", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2017-12-18T01:29:00.190", "references": [{"url": "http://www.securityfocus.com/bid/102228", "tags": ["Third Party Advisory", "VDB Entry"], "source": "security@debian.org"}, {"url": "https://access.redhat.com/errata/RHBA-2019:0327", "tags": ["Third Party Advisory"], "source": "security@debian.org"}, {"url": "https://access.redhat.com/errata/RHSA-2018:3092", "tags": ["Third Party Advisory"], "source": "security@debian.org"}, {"url": "https://bugs.debian.org/884615", "tags": ["Issue Tracking", "Mailing List", "Patch", "Third Party Advisory"], "source": "security@debian.org"}, {"url": "https://sourceware.org/bugzilla/show_bug.cgi?id=22625", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "source": "security@debian.org"}, {"url": "https://sourceware.org/ml/libc-alpha/2017-12/msg00528.html", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "source": "security@debian.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-426"}]}], "descriptions": [{"lang": "en", "value": "elf/dl-load.c in the GNU C Library (aka glibc or libc6) 2.19 through 2.26 mishandles RPATH and RUNPATH containing $ORIGIN for a privileged (setuid or AT_SECURE) program, which allows local users to gain privileges via a Trojan horse library in the current working directory, related to the fillin_rpath and decompose_rpath functions. This is associated with misinterpretion of an empty RPATH/RUNPATH token as the \"./\" directory. NOTE: this configuration of RPATH/RUNPATH for a privileged program is apparently very uncommon; most likely, no such program is shipped with any common Linux distribution."}, {"lang": "es", "value": "elf/dl-load.c en la biblioteca GNU C (tambi\u00e9n llamada glibc o libc6) desde la versi\u00f3n 2.19 hasta la 2.26 manipula incorrectamente RPATH y RUNPATH que contienen $ORIGIN para un programa privilegiado (setuid o AT_SECURE), lo que permite que los usuarios locales obtengan privilegios mediante una librer\u00eda con malware troyano en el directorio actual. Esto est\u00e1 relacionado con las funciones fillin_rpath y decompose_rpath. Esto se asocia con la interpretaci\u00f3n incorrecta de un token RPATH/RUNPATH vac\u00edo como el directorio \"./\". NOTA: esta configuraci\u00f3n de RPATH/RUNPATH para un programa privilegiado es aparentemente muy poco com\u00fan. Lo m\u00e1s probable es que este programa no se provea con una distribuci\u00f3n de Linux com\u00fan."}], "lastModified": "2020-10-15T13:28:10.487", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:gnu:glibc:2.19:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1829B291-7B55-4B4A-9CA4-8784932935B8"}, {"criteria": "cpe:2.3:a:gnu:glibc:2.20:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D625EEF2-DB23-4DFE-AF1C-BEE2DD38C54D"}, {"criteria": "cpe:2.3:a:gnu:glibc:2.21:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "47C2E388-06A8-4AD0-9511-749FD10D2936"}, {"criteria": "cpe:2.3:a:gnu:glibc:2.22:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8DB1928D-6A44-4B2D-A9BB-4656AF47317B"}, {"criteria": "cpe:2.3:a:gnu:glibc:2.23:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "32938018-220F-4444-984C-2D0CACFAAD04"}, {"criteria": "cpe:2.3:a:gnu:glibc:2.25:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "36AD162E-4C9C-48A5-B2BF-9C0B4BDD5822"}, {"criteria": "cpe:2.3:a:gnu:glibc:2.26:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7B1B17E4-66FB-48F1-A417-2B502955257A"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "33C068A4-3780-4EAB-A937-6082DF847564"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "51EF4996-72F4-4FA4-814F-F5991E7A8318"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "825ECE2D-E232-46E0-A047-074B34DB1E97"}], "operator": "OR"}]}], "sourceIdentifier": "security@debian.org"}