gsd-2021-26910
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
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.
Aliases
Aliases
CVE-2021-26910


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-26910",
    "description": "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.",
    "id": "GSD-2021-26910",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-26910.html",
      "https://www.debian.org/security/2021/dsa-4849",
      "https://ubuntu.com/security/CVE-2021-26910",
      "https://advisories.mageia.org/CVE-2021-26910.html",
      "https://security.archlinux.org/CVE-2021-26910"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-26910"
      ],
      "details": "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.",
      "id": "GSD-2021-26910",
      "modified": "2023-12-13T01:23:33.292107Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ID": "CVE-2021-26910",
        "STATE": "PUBLIC"
      },
      "affects": {
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            {
              "product": {
                "product_data": [
                  {
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                    "version": {
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                          "version_value": "n/a"
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          "attackVector": "LOCAL",
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          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
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          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AC:L/AV:L/A:H/C:H/I:H/PR:L/S:U/UI:N",
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          },
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            "url": "https://github.com/netblue30/firejail/releases/tag/0.9.64.4"
          },
          {
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            "refsource": "MLIST",
            "url": "http://www.openwall.com/lists/oss-security/2021/02/09/1"
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          },
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          },
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            "name": "GLSA-202105-19",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/202105-19"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:a:firejail_project:firejail:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "0.9.64.4",
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            "operator": "OR"
          },
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        "problemtype": {
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                  "value": "CWE-367"
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        },
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            {
              "name": "https://github.com/netblue30/firejail/commit/97d8a03cad19501f017587cc4e47d8418273834b",
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            },
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              "url": "https://github.com/netblue30/firejail/releases/tag/0.9.64.4"
            },
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              "name": "https://unparalleled.eu/blog/2021/20210208-rigged-race-against-firejail-for-local-root/",
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              ],
              "url": "https://unparalleled.eu/blog/2021/20210208-rigged-race-against-firejail-for-local-root/"
            },
            {
              "name": "[oss-security] 20210209 Re: [cve-pending] Firejail: root privilege escalation in OverlayFS code",
              "refsource": "MLIST",
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              "url": "http://www.openwall.com/lists/oss-security/2021/02/09/1"
            },
            {
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            },
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              "url": "https://lists.debian.org/debian-lts-announce/2021/02/msg00015.html"
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            }
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      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 6.9,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 3.4,
          "impactScore": 10.0,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.0,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.0,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2022-05-23T22:01Z",
      "publishedDate": "2021-02-08T20:15Z"
    }
  }
}


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