{ "id": "CVE-2021-26910", "sourceIdentifier": "cve@mitre.org", "published": "2021-02-08T20:15:13.090", "lastModified": "2022-05-23T22:01:20.930", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "Firejail before 0.9.64.4 allows attackers to bypass intended access restrictions because there is a TOCTOU race condition between a stat operation and an OverlayFS mount operation." }, { "lang": "es", "value": "Firejail versiones anteriores a 0.9.64.4, permite a atacantes omitir las restricciones de acceso previstas porque se presenta una condici\u00f3n de carrera TOCTOU entre una operaci\u00f3n de estad\u00edstica y una operaci\u00f3n de montaje OverlayFS" } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "attackVector": "LOCAL", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 7.0, "baseSeverity": "HIGH" }, "exploitabilityScore": 1.0, "impactScore": 5.9 }, { "source": "cve@mitre.org", "type": "Secondary", "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 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C", "accessVector": "LOCAL", "accessComplexity": "MEDIUM", "authentication": "NONE", "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "baseScore": 6.9 }, "baseSeverity": "MEDIUM", "exploitabilityScore": 3.4, "impactScore": 10.0, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-367" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:firejail_project:firejail:*:*:*:*:*:*:*:*", "versionEndExcluding": "0.9.64.4", "matchCriteriaId": "4457E838-C33E-4AEA-842B-8A155CC63213" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252" }, { "vulnerable": true, "criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73" } ] } ] } ], "references": [ { "url": "http://www.openwall.com/lists/oss-security/2021/02/09/1", "source": "cve@mitre.org", "tags": [ "Exploit", "Mailing List", "Patch", "Third Party Advisory" ] }, { "url": "https://github.com/netblue30/firejail/commit/97d8a03cad19501f017587cc4e47d8418273834b", "source": "cve@mitre.org", "tags": [ "Patch", "Third Party Advisory" ] }, { "url": "https://github.com/netblue30/firejail/releases/tag/0.9.64.4", "source": "cve@mitre.org", "tags": [ "Release Notes", "Third Party Advisory" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2021/02/msg00015.html", "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ] }, { "url": "https://security.gentoo.org/glsa/202105-19", "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ] }, { "url": "https://unparalleled.eu/blog/2021/20210208-rigged-race-against-firejail-for-local-root/", "source": "cve@mitre.org", "tags": [ "Exploit", "Third Party Advisory" ] }, { "url": "https://unparalleled.eu/publications/2021/advisory-unpar-2021-0.txt", "source": "cve@mitre.org", "tags": [ "Exploit", "Third Party Advisory" ] }, { "url": "https://www.debian.org/security/2021/dsa-4849", "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ] } ] }