FKIE_CVE-2026-47331

Vulnerability from fkie_nvd - Published: 2026-05-28 19:16 - Updated: 2026-10-26 13:10
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An unprivileged local user could trigger the race condition that can lead to a use-after-free (UAF) and, theoretically, arbitrary code execution.
References
security@ubuntu.comhttps://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=5e5cd4759b63363373faf1ce15d1cab3606d6ec8Patch
Impacted products
Vendor Product Version
canonical ubuntu_linux 24.04
canonical ubuntu_linux 25.10
canonical ubuntu_linux 26.04
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://launchpad.net/ubuntu/+source/",
          "defaultStatus": "unaffected",
          "modules": [
            "AppArmor"
          ],
          "packageName": "linux",
          "product": "Ubuntu Linux",
          "repo": "https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/",
          "vendor": "Canonical",
          "versions": [
            {
              "lessThan": "6.8.0-124.124",
              "status": "affected",
              "version": "6.8.0",
              "versionType": "dpkg"
            }
          ]
        }
      ],
      "source": "security@ubuntu.com"
    }
  ],
  "configurations": [
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              "vulnerable": true
            },
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              "matchCriteriaId": "68D562DD-F22D-4310-93C7-7DE817104CAC",
              "vulnerable": true
            },
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An unprivileged local user could trigger the race condition that can lead to a use-after-free (UAF) and, theoretically, arbitrary code execution."
    },
    {
      "lang": "es",
      "value": "Ubuntu Linux 6.8 contiene parches SAUCE de AppArmor que no logran adquirir un bloqueo al modificar una lista enlazada. Un usuario local sin privilegios podr\u00eda desencadenar la condici\u00f3n de carrera que puede llevar a un uso despu\u00e9s de liberaci\u00f3n (UAF) y, te\u00f3ricamente, a la ejecuci\u00f3n de c\u00f3digo arbitrario."
    }
  ],
  "id": "CVE-2026-47331",
  "lastModified": "2026-10-26T13:10:00.140",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "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",
          "version": "3.1"
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        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "security@ubuntu.com",
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            {
              "technicalImpact": "total"
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          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-05-28T00:00:00+00:00",
          "version": "2.0.3"
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  },
  "published": "2026-05-28T19:16:41.757",
  "references": [
    {
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      "tags": [
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  "vulnStatus": "Analyzed",
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          "value": "CWE-416"
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      ],
      "source": "security@ubuntu.com",
      "type": "Secondary"
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  ]
}



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