fkie_cve-2023-2640
Vulnerability from fkie_nvd
Published
2023-07-26 02:15
Modified
2024-11-21 07:58
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
On Ubuntu kernels carrying both c914c0e27eb0 and "UBUNTU: SAUCE: overlayfs: Skip permission checking for trusted.overlayfs.* xattrs", an unprivileged user may set privileged extended attributes on the mounted files, leading them to be set on the upper files without the appropriate security checks.
References
security@ubuntu.comhttps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2640Third Party Advisory
security@ubuntu.comhttps://lists.ubuntu.com/archives/kernel-team/2023-July/140923.htmlMailing List, Patch
security@ubuntu.comhttps://ubuntu.com/security/notices/USN-6250-1Vendor Advisory
security@ubuntu.comhttps://wiz.io/blog/ubuntu-overlayfs-vulnerabilityExploit, Mitigation, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2640Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.ubuntu.com/archives/kernel-team/2023-July/140923.htmlMailing List, Patch
af854a3a-2127-422b-91ae-364da2661108https://ubuntu.com/security/notices/USN-6250-1Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://wiz.io/blog/ubuntu-overlayfs-vulnerabilityExploit, Mitigation, Third Party Advisory
Impacted products
Vendor Product Version
canonical ubuntu_linux 23.04


To clipboard 

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        {
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              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:23.04:*:*:*:*:*:*:*",
              "matchCriteriaId": "B2E702D7-F8C0-49BF-9FFB-883017076E98",
              "vulnerable": true
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          "operator": "OR"
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "On Ubuntu kernels carrying both c914c0e27eb0 and \"UBUNTU: SAUCE: overlayfs: Skip permission checking for trusted.overlayfs.* xattrs\", an unprivileged user may set privileged extended attributes on the mounted files, leading them to be set on the upper files without the appropriate security checks."
    }
  ],
  "id": "CVE-2023-2640",
  "lastModified": "2024-11-21T07:58:59.060",
  "metrics": {
    "cvssMetricV31": [
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        "cvssData": {
          "attackComplexity": "LOW",
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          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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  "sourceIdentifier": "security@ubuntu.com",
  "vulnStatus": "Modified",
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      "source": "nvd@nist.gov",
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  ]
}


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