lsn-0072-1
Vulnerability from osv_ubuntu
Published
2020-10-14 10:08
Modified
2026-06-03 10:46
Summary
Kernel Live Patch Security Notice
Details

It was discovered that the F2FS file system implementation in the Linux kernel did not properly perform bounds checking on xattrs in some situations. A local attacker could possibly use this to expose sensitive information (kernel memory). (CVE-2020-0067)

It was discovered that the Serial CAN interface driver in the Linux kernel did not properly initialize data. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2020-11494)

Mauricio Faria de Oliveira discovered that the aufs implementation in the Linux kernel improperly managed inode reference counts in the vfsub_dentry_open() method. A local attacker could use this vulnerability to cause a denial of service. (CVE-2020-11935)

Piotr Krysiuk discovered that race conditions existed in the file system implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2020-12114)

Or Cohen discovered that the AF_PACKET implementation in the Linux kernel did not properly perform bounds checking in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-14386)

Hador Manor discovered that the DCCP protocol implementation in the Linux kernel improperly handled socket reuse, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-16119)

Giuseppe Scrivano discovered that the overlay file system in the Linux kernel did not properly perform permission checks in some situations. A local attacker could possibly use this to bypass intended restrictions and gain read access to restricted files. (CVE-2020-16120)

References
To clipboard 

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      ],
      "versions": [
        "4.15.0-1002.3",
        "4.15.0-1004.5",
        "4.15.0-1006.9",
        "4.15.0-1008.11",
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        "4.15.0-1097.107"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Livepatch subscription required",
        "module_name_regex": "lkp_Ubuntu_5_4_0[_|\\d]+_aws_(\\d+)",
        "module_version": "72"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "linux-aws",
        "purl": "pkg:deb/ubuntu/linux-aws@5.4.0-1028.29?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.0-1028.29"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.3.0-1003.3",
        "5.3.0-1008.9",
        "5.3.0-1009.10",
        "5.3.0-1010.11",
        "5.4.0-1005.5",
        "5.4.0-1007.7",
        "5.4.0-1008.8",
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        "5.4.0-1015.15",
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        "5.4.0-1022.22",
        "5.4.0-1024.24",
        "5.4.0-1025.25"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Livepatch subscription required",
        "module_name_regex": "lkp_Ubuntu_5_4_0[_|\\d]+_azure_(\\d+)",
        "module_version": "72"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "linux-azure",
        "purl": "pkg:deb/ubuntu/linux-azure@5.4.0-1031.32?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.0-1031.32"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.3.0-1003.3",
        "5.3.0-1008.9",
        "5.3.0-1009.10",
        "5.4.0-1006.6",
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        "5.4.0-1012.12",
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        "5.4.0-1020.20",
        "5.4.0-1022.22",
        "5.4.0-1023.23",
        "5.4.0-1025.25",
        "5.4.0-1026.26"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Livepatch subscription required",
        "module_name_regex": "lkp_Ubuntu_5_4_0[_|\\d]+_gcp_(\\d+)",
        "module_version": "72"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "linux-gcp",
        "purl": "pkg:deb/ubuntu/linux-gcp@5.4.0-1028.29?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.0-1028.29"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.3.0-1004.4",
        "5.3.0-1009.10",
        "5.3.0-1011.12",
        "5.4.0-1005.5",
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      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Livepatch subscription required",
        "module_name_regex": "lkp_Ubuntu_5_4_0[_|\\d]+_(?:generic|lowlatency)_(\\d+)",
        "module_version": "72"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "linux",
        "purl": "pkg:deb/ubuntu/linux@5.4.0-51.56?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.0-51.56"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.3.0-18.19",
        "5.3.0-24.26",
        "5.4.0-9.12",
        "5.4.0-18.22",
        "5.4.0-21.25",
        "5.4.0-24.28",
        "5.4.0-25.29",
        "5.4.0-26.30",
        "5.4.0-28.32",
        "5.4.0-29.33",
        "5.4.0-31.35",
        "5.4.0-33.37",
        "5.4.0-37.41",
        "5.4.0-39.43",
        "5.4.0-40.44",
        "5.4.0-42.46",
        "5.4.0-45.49",
        "5.4.0-47.51",
        "5.4.0-48.52"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that the F2FS file system implementation in the Linux\nkernel did not properly perform bounds checking on xattrs in some\nsituations. A local attacker could possibly use this to expose sensitive\ninformation (kernel memory). (CVE-2020-0067)\n\nIt was discovered that the Serial CAN interface driver in the Linux kernel\ndid not properly initialize data. A local attacker could use this to expose\nsensitive information (kernel memory). (CVE-2020-11494)\n\nMauricio Faria de Oliveira discovered that the aufs implementation in the\nLinux kernel improperly managed inode reference counts in the\nvfsub_dentry_open() method. A local attacker could use this vulnerability\nto cause a denial of service. (CVE-2020-11935)\n\nPiotr Krysiuk discovered that race conditions existed in the file system\nimplementation in the Linux kernel. A local attacker could use this to\ncause a denial of service (system crash). (CVE-2020-12114)\n\nOr Cohen discovered that the AF_PACKET implementation in the Linux kernel\ndid not properly perform bounds checking in some situations. A local\nattacker could use this to cause a denial of service (system crash) or\npossibly execute arbitrary code. (CVE-2020-14386)\n\nHador Manor discovered that the DCCP protocol implementation in the Linux\nkernel improperly handled socket reuse, leading to a use-after-free\nvulnerability. A local attacker could use this to cause a denial of service\n(system crash) or possibly execute arbitrary code. (CVE-2020-16119)\n\nGiuseppe Scrivano discovered that the overlay file system in the Linux\nkernel did not properly perform permission checks in some situations. A\nlocal attacker could possibly use this to bypass intended restrictions and\ngain read access to restricted files. (CVE-2020-16120)",
  "id": "LSN-0072-1",
  "modified": "2026-06-03T10:46:31Z",
  "published": "2020-10-14T10:08:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/LSN-0072-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-0067"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-11494"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-11935"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12114"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-14386"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-16119"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-16120"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "Kernel Live Patch Security Notice",
  "upstream": [
    "UBUNTU-CVE-2020-0067",
    "UBUNTU-CVE-2020-11494",
    "UBUNTU-CVE-2020-11935",
    "UBUNTU-CVE-2020-12114",
    "UBUNTU-CVE-2020-14386",
    "UBUNTU-CVE-2020-16119",
    "UBUNTU-CVE-2020-16120"
  ]
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.