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CVE-2019-12439

Full vulnerability record from the local CVENow database.

Description

bubblewrap.c in Bubblewrap before 0.3.3 misuses temporary directories in /tmp as a mount point. In some particular configurations (related to XDG_RUNTIME_DIR), a local attacker may abuse this flaw to prevent other users from executing bubblewrap or potentially execute code.

Severity
HIGH
CVSS score
7.8 (v3.0)
Vulnerability status
Modified
Source identifier
Published
2019-05-29 15:29:00.377000
Last modified
2026-11-02 18:18:23.113000
View original CVE JSON
{
  "id": "CVE-2019-12439",
  "sourceIdentifier": "[email protected]",
  "published": "2019-05-29T15:29:00.377",
  "lastModified": "2026-11-02T18:18:23.113",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "bubblewrap.c in Bubblewrap before 0.3.3 misuses temporary directories in /tmp as a mount point. In some particular configurations (related to XDG_RUNTIME_DIR), a local attacker may abuse this flaw to prevent other users from executing bubblewrap or potentially execute code."
    },
    {
      "lang": "es",
      "value": "El archivo bubblewrap.c en Bubblewrap anterior de versión 0.3.3, utiliza de manera incorrecta directorios temporales en /tmp como un punto de montaje. En algunas configuraciones particulares (relacionadas con XDG_RUNTIME_DIR), un atacante local puede abusar de este defecto  para prevenir que otros usuarios ejecuten bubblewrap o potencialmente ejecute código."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "version": "n/a",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV30": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 7.4,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.4,
        "impactScore": 5.9
      },
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
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          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9
      }
    ],
    "cvssMetricV2": [
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "baseScore": 4.6,
          "accessVector": "LOCAL",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL"
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 3.9,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-11-02T17:31:53.334830Z",
          "id": "CVE-2019-12439",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:projectatomic:bubblewrap:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "0.3.3",
              "matchCriteriaId": "D39BE3CC-42B1-4008-A900-798FA1445831"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00028.html",
      "source": "[email protected]"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00015.html",
      "source": "[email protected]"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2019:1833",
      "source": "[email protected]"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1695963",
      "source": "[email protected]",
      "tags": [
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    },
    {
      "url": "https://github.com/projectatomic/bubblewrap/commit/efc89e3b939b4bde42c10f065f6b7b02958ed50e",
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      "source": "[email protected]",
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    },
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      "url": "https://github.com/projectatomic/bubblewrap/releases/tag/v0.3.3",
      "source": "[email protected]",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://security.gentoo.org/glsa/202006-18",
      "source": "[email protected]"
    },
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      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00028.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "tags": [
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    {
      "url": "https://github.com/projectatomic/bubblewrap/releases/tag/v0.3.3",
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}