fkie_cve-2021-44730
Vulnerability from fkie_nvd
Published
2022-02-17 23:15
Modified
2024-11-21 06:31
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Summary
snapd 2.54.2 did not properly validate the location of the snap-confine binary. A local attacker who can hardlink this binary to another location to cause snap-confine to execute other arbitrary binaries and hence gain privilege escalation. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1
References
security@ubuntu.comhttp://www.openwall.com/lists/oss-security/2022/02/18/2Mailing List, Third Party Advisory
security@ubuntu.comhttp://www.openwall.com/lists/oss-security/2022/02/23/1Mailing List, Third Party Advisory
security@ubuntu.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3QTBN7LLZISXIA4KU4UKDR27Q5PXDS2U/
security@ubuntu.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCGHG6LJAVJJ72TMART6A7N4Z6MSTGI7/
security@ubuntu.comhttps://ubuntu.com/security/notices/USN-5292-1Patch, Vendor Advisory
security@ubuntu.comhttps://www.debian.org/security/2022/dsa-5080Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2022/02/18/2Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2022/02/23/1Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3QTBN7LLZISXIA4KU4UKDR27Q5PXDS2U/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCGHG6LJAVJJ72TMART6A7N4Z6MSTGI7/
af854a3a-2127-422b-91ae-364da2661108https://ubuntu.com/security/notices/USN-5292-1Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2022/dsa-5080Issue Tracking, Third Party Advisory
Impacted products
Vendor Product Version
canonical snapd *
canonical ubuntu_linux 18.04
canonical ubuntu_linux 20.04
canonical ubuntu_linux 21.10
fedoraproject fedora 34
fedoraproject fedora 35
debian debian_linux 10.0
debian debian_linux 11.0


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
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      "value": "snapd 2.54.2 did not properly validate the location of the snap-confine binary. A local attacker who can hardlink this binary to another location to cause snap-confine to execute other arbitrary binaries and hence gain privilege escalation. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1"
    },
    {
      "lang": "es",
      "value": "snapd versi\u00f3n 2.54.2, no comprueba apropiadamente la ubicaci\u00f3n del binario snap-confine. Un atacante local que pueda enlazar este binario a otra ubicaci\u00f3n puede causar que snap-confine ejecute otros binarios arbitrarios y, por lo tanto, alcanzar una escalada de privilegios. Corregido en snapd versiones 2.54.3+18.04, 2.54.3+20.04 y 2.54.3+21.10.1"
    }
  ],
  "id": "CVE-2021-44730",
  "lastModified": "2024-11-21T06:31:28.040",
  "metrics": {
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        "baseSeverity": "MEDIUM",
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          "accessVector": "LOCAL",
          "authentication": "NONE",
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          "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,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
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          "confidentialityImpact": "HIGH",
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  "published": "2022-02-17T23:15:07.413",
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}


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