usn-5116-1
Vulnerability from osv_ubuntu
Published
2021-10-20 18:42
Modified
2026-06-03 10:45
Summary
linux, linux-bluefield, linux-gcp-5.4, linux-hwe-5.4, linux-kvm vulnerabilities
Details

It was discovered that a race condition existed in the Atheros Ath9k WiFi driver in the Linux kernel. An attacker could possibly use this to expose sensitive information (WiFi network traffic). (CVE-2020-3702)

Alois Wohlschlager discovered that the overlay file system in the Linux kernel did not restrict private clones in some situations. An attacker could use this to expose sensitive information. (CVE-2021-3732)

It was discovered that the KVM hypervisor implementation in the Linux kernel did not properly compute the access permissions for shadow pages in some situations. A local attacker could use this to cause a denial of service. (CVE-2021-38198)

It was discovered that the Xilinx 10/100 Ethernet Lite device driver in the Linux kernel could report pointer addresses in some situations. An attacker could use this information to ease the exploitation of another vulnerability. (CVE-2021-38205)

It was discovered that the ext4 file system in the Linux kernel contained a race condition when writing xattrs to an inode. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. (CVE-2021-40490)

It was discovered that the 6pack network protocol driver in the Linux kernel did not properly perform validation checks. A privileged attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-42008)

References
To clipboard 

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          {
            "binary_name": "linux-bluefield-headers-5.4.0-1020",
            "binary_version": "5.4.0-1020.23"
          },
          {
            "binary_name": "linux-bluefield-tools-5.4.0-1020",
            "binary_version": "5.4.0-1020.23"
          },
          {
            "binary_name": "linux-buildinfo-5.4.0-1020-bluefield",
            "binary_version": "5.4.0-1020.23"
          },
          {
            "binary_name": "linux-headers-5.4.0-1020-bluefield",
            "binary_version": "5.4.0-1020.23"
          },
          {
            "binary_name": "linux-image-unsigned-5.4.0-1020-bluefield",
            "binary_version": "5.4.0-1020.23"
          },
          {
            "binary_name": "linux-modules-5.4.0-1020-bluefield",
            "binary_version": "5.4.0-1020.23"
          },
          {
            "binary_name": "linux-tools-5.4.0-1020-bluefield",
            "binary_version": "5.4.0-1020.23"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "linux-bluefield",
        "purl": "pkg:deb/ubuntu/linux-bluefield@5.4.0-1020.23?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.0-1020.23"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.4.0-1007.10",
        "5.4.0-1011.14",
        "5.4.0-1012.15",
        "5.4.0-1013.16",
        "5.4.0-1016.19",
        "5.4.0-1019.22"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-3702",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-3732",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-38198",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-38205",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-40490",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-42008",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "linux-buildinfo-5.4.0-1048-kvm",
            "binary_version": "5.4.0-1048.50"
          },
          {
            "binary_name": "linux-headers-5.4.0-1048-kvm",
            "binary_version": "5.4.0-1048.50"
          },
          {
            "binary_name": "linux-image-unsigned-5.4.0-1048-kvm",
            "binary_version": "5.4.0-1048.50"
          },
          {
            "binary_name": "linux-kvm-headers-5.4.0-1048",
            "binary_version": "5.4.0-1048.50"
          },
          {
            "binary_name": "linux-kvm-tools-5.4.0-1048",
            "binary_version": "5.4.0-1048.50"
          },
          {
            "binary_name": "linux-modules-5.4.0-1048-kvm",
            "binary_version": "5.4.0-1048.50"
          },
          {
            "binary_name": "linux-tools-5.4.0-1048-kvm",
            "binary_version": "5.4.0-1048.50"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "linux-kvm",
        "purl": "pkg:deb/ubuntu/linux-kvm@5.4.0-1048.50?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.0-1048.50"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.3.0-1003.3",
        "5.3.0-1008.9",
        "5.3.0-1009.10",
        "5.4.0-1004.4",
        "5.4.0-1006.6",
        "5.4.0-1007.7",
        "5.4.0-1008.8",
        "5.4.0-1009.9",
        "5.4.0-1011.11",
        "5.4.0-1015.15",
        "5.4.0-1018.18",
        "5.4.0-1020.20",
        "5.4.0-1021.21",
        "5.4.0-1023.23",
        "5.4.0-1024.24",
        "5.4.0-1026.27",
        "5.4.0-1028.29",
        "5.4.0-1030.31",
        "5.4.0-1031.32",
        "5.4.0-1032.33",
        "5.4.0-1033.34",
        "5.4.0-1034.35",
        "5.4.0-1036.37",
        "5.4.0-1037.38",
        "5.4.0-1038.39",
        "5.4.0-1039.40",
        "5.4.0-1040.41",
        "5.4.0-1041.42",
        "5.4.0-1044.46",
        "5.4.0-1045.47",
        "5.4.0-1046.48",
        "5.4.0-1047.49"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that a race condition existed in the Atheros Ath9k WiFi\ndriver in the Linux kernel. An attacker could possibly use this to expose\nsensitive information (WiFi network traffic). (CVE-2020-3702)\n\nAlois Wohlschlager discovered that the overlay file system in the Linux\nkernel did not restrict private clones in some situations. An attacker\ncould use this to expose sensitive information. (CVE-2021-3732)\n\nIt was discovered that the KVM hypervisor implementation in the Linux\nkernel did not properly compute the access permissions for shadow pages in\nsome situations. A local attacker could use this to cause a denial of\nservice. (CVE-2021-38198)\n\nIt was discovered that the Xilinx 10/100 Ethernet Lite device driver in the\nLinux kernel could report pointer addresses in some situations. An attacker\ncould use this information to ease the exploitation of another\nvulnerability. (CVE-2021-38205)\n\nIt was discovered that the ext4 file system in the Linux kernel contained a\nrace condition when writing xattrs to an inode. A local attacker could use\nthis to cause a denial of service or possibly gain administrative\nprivileges. (CVE-2021-40490)\n\nIt was discovered that the 6pack network protocol driver in the Linux\nkernel did not properly perform validation checks. A privileged attacker\ncould use this to cause a denial of service (system crash) or execute\narbitrary code. (CVE-2021-42008)\n",
  "id": "USN-5116-1",
  "modified": "2026-06-03T10:45:27Z",
  "published": "2021-10-20T18:42:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5116-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-3702"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3732"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-38198"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-38205"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-40490"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-42008"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux, linux-bluefield, linux-gcp-5.4, linux-hwe-5.4, linux-kvm vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2020-3702",
    "UBUNTU-CVE-2021-3732",
    "UBUNTU-CVE-2021-38198",
    "UBUNTU-CVE-2021-38205",
    "UBUNTU-CVE-2021-40490",
    "UBUNTU-CVE-2021-42008"
  ]
}



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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.