fkie_cve-2020-8428
Vulnerability from fkie_nvd
Published
2020-01-29 00:15
Modified
2024-11-21 05:38
Summary
fs/namei.c in the Linux kernel before 5.5 has a may_create_in_sticky use-after-free, which allows local users to cause a denial of service (OOPS) or possibly obtain sensitive information from kernel memory, aka CID-d0cb50185ae9. One attack vector may be an open system call for a UNIX domain socket, if the socket is being moved to a new parent directory and its old parent directory is being removed.
References
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
cve@mitre.orghttp://packetstormsecurity.com/files/157233/Kernel-Live-Patch-Security-Notice-LSN-0065-1.html
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2020/01/28/4Mailing List, Third Party Advisory
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2020/02/02/1
cve@mitre.orghttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d0cb50185ae942b03c4327be322055d622dc79f6Mailing List, Patch, Vendor Advisory
cve@mitre.orghttps://github.com/torvalds/linux/commit/d0cb50185ae942b03c4327be322055d622dc79f6Patch, Third Party Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
cve@mitre.orghttps://security.netapp.com/advisory/ntap-20200313-0003/
cve@mitre.orghttps://usn.ubuntu.com/4318-1/
cve@mitre.orghttps://usn.ubuntu.com/4319-1/
cve@mitre.orghttps://usn.ubuntu.com/4320-1/
cve@mitre.orghttps://usn.ubuntu.com/4324-1/
cve@mitre.orghttps://usn.ubuntu.com/4325-1/
cve@mitre.orghttps://www.debian.org/security/2020/dsa-4667
cve@mitre.orghttps://www.debian.org/security/2020/dsa-4698
cve@mitre.orghttps://www.openwall.com/lists/oss-security/2020/01/28/2Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/157233/Kernel-Live-Patch-Security-Notice-LSN-0065-1.html
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2020/01/28/4Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2020/02/02/1
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d0cb50185ae942b03c4327be322055d622dc79f6Mailing List, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/torvalds/linux/commit/d0cb50185ae942b03c4327be322055d622dc79f6Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20200313-0003/
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/4318-1/
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/4319-1/
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/4320-1/
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/4324-1/
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/4325-1/
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2020/dsa-4667
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2020/dsa-4698
af854a3a-2127-422b-91ae-364da2661108https://www.openwall.com/lists/oss-security/2020/01/28/2Mailing List, Third Party Advisory
Impacted products
Vendor Product Version
linux linux_kernel *



{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "904A2E19-D6CD-4C97-B8F4-1F179CC6956C",
              "versionEndExcluding": "5.5",
              "versionStartIncluding": "4.19",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "fs/namei.c in the Linux kernel before 5.5 has a may_create_in_sticky use-after-free, which allows local users to cause a denial of service (OOPS) or possibly obtain sensitive information from kernel memory, aka CID-d0cb50185ae9. One attack vector may be an open system call for a UNIX domain socket, if the socket is being moved to a new parent directory and its old parent directory is being removed."
    },
    {
      "lang": "es",
      "value": "El archivo fs/namei.c en el kernel de Linux versiones anteriores a 5.5, presenta una vulnerabilidad de uso de la memoria previamente liberada en la funci\u00f3n may_create_in_sticky, que permite a usuarios locales causar una denegaci\u00f3n de servicio (OOPS) u obtener informaci\u00f3n confidencial de la memoria del kernel, tambi\u00e9n se conoce como CID-d0cb50185ae9. Un vector de ataque puede ser una llamada de sistema abierta para un socket del dominio UNIX, si el socket est\u00e1 siendo movido hacia un nuevo directorio padre y su antiguo directorio padre est\u00e1 siendo eliminado."
    }
  ],
  "id": "CVE-2020-8428",
  "lastModified": "2024-11-21T05:38:50.103",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 3.6,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-01-29T00:15:10.953",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://packetstormsecurity.com/files/157233/Kernel-Live-Patch-Security-Notice-LSN-0065-1.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2020/01/28/4"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.openwall.com/lists/oss-security/2020/02/02/1"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d0cb50185ae942b03c4327be322055d622dc79f6"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/torvalds/linux/commit/d0cb50185ae942b03c4327be322055d622dc79f6"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://security.netapp.com/advisory/ntap-20200313-0003/"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://usn.ubuntu.com/4318-1/"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://usn.ubuntu.com/4319-1/"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://usn.ubuntu.com/4320-1/"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://usn.ubuntu.com/4324-1/"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://usn.ubuntu.com/4325-1/"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://www.debian.org/security/2020/dsa-4667"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://www.debian.org/security/2020/dsa-4698"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://www.openwall.com/lists/oss-security/2020/01/28/2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://packetstormsecurity.com/files/157233/Kernel-Live-Patch-Security-Notice-LSN-0065-1.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      ],
      "url": "http://www.openwall.com/lists/oss-security/2020/01/28/4"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2020/02/02/1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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        "Patch",
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      ],
      "url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d0cb50185ae942b03c4327be322055d622dc79f6"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/torvalds/linux/commit/d0cb50185ae942b03c4327be322055d622dc79f6"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://security.netapp.com/advisory/ntap-20200313-0003/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://usn.ubuntu.com/4318-1/"
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    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://usn.ubuntu.com/4319-1/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://usn.ubuntu.com/4320-1/"
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    {
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      "url": "https://usn.ubuntu.com/4324-1/"
    },
    {
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      "url": "https://usn.ubuntu.com/4325-1/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://www.debian.org/security/2020/dsa-4667"
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    {
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      "url": "https://www.debian.org/security/2020/dsa-4698"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
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      "url": "https://www.openwall.com/lists/oss-security/2020/01/28/2"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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