FKIE_CVE-2015-1340

Vulnerability from fkie_nvd - Published: 2019-04-22 16:29 - Updated: 2026-06-17 00:22
Severity
7.0 (High) - CVSS:3.0/AV:P/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
8.1 (High) - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
LXD before version 0.19-0ubuntu5 doUidshiftIntoContainer() has an unsafe Chmod() call that races against the stat in the Filepath.Walk() function. A symbolic link created in that window could cause any file on the system to have any mode of the attacker's choice.
References
security@ubuntu.comhttps://github.com/lxc/lxd/commit/19c6961cc1012c8a529f20807328a9357f5034f4Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/lxc/lxd/commit/19c6961cc1012c8a529f20807328a9357f5034f4Patch, Third Party Advisory
Impacted products
Vendor Product Version
linuxcontainers lxd -
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "LXD",
          "vendor": "Ubuntu",
          "versions": [
            {
              "lessThan": "0.19-0ubuntu5",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "security@ubuntu.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:linuxcontainers:lxd:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "0CA5DE4F-5C5D-4013-B838-F9A0548AD004",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "LXD before version 0.19-0ubuntu5 doUidshiftIntoContainer() has an unsafe Chmod() call that races against the stat in the Filepath.Walk() function. A symbolic link created in that window could cause any file on the system to have any mode of the attacker\u0027s choice."
    },
    {
      "lang": "es",
      "value": "LXD anterior a la versi\u00f3n 0,19-0ubuntu5 la funci\u00f3n doUidshiftIntoContainer() presenta una llamada no segura chmod() que corre contra la STAT en la funci\u00f3n FilePath.Walk(). Un enlace simb\u00f3lico creado en esa ventana podr\u00eda hacer que cualquier archivo en el sistema tuviera cualquier modo de elecci\u00f3n del atacante."
    }
  ],
  "id": "CVE-2015-1340",
  "lastModified": "2026-06-17T00:22:13.613",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.8,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "PHYSICAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.0,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:P/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 0.4,
        "impactScore": 6.0,
        "source": "security@ubuntu.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2019-04-22T16:29:00.897",
  "references": [
    {
      "source": "security@ubuntu.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/lxc/lxd/commit/19c6961cc1012c8a529f20807328a9357f5034f4"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/lxc/lxd/commit/19c6961cc1012c8a529f20807328a9357f5034f4"
    }
  ],
  "sourceIdentifier": "security@ubuntu.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-362"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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