usn-5106-1
Vulnerability from osv_ubuntu
Published
2021-10-06 19:09
Modified
2026-06-03 10:45
Summary
linux-oem-5.10 vulnerabilities
Details

Valentina Palmiotti discovered that the io_uring subsystem in the Linux kernel could be coerced to free adjacent memory. A local attacker could use this to execute arbitrary code. (CVE-2021-41073)

It was discovered that the Linux kernel did not properly enforce certain types of entries in the Secure Boot Forbidden Signature Database (aka dbx) protection mechanism. An attacker could use this to bypass UEFI Secure Boot restrictions. (CVE-2020-26541)

It was discovered that the KVM hypervisor implementation in the Linux kernel did not properly perform reference counting in some situations, leading to a use-after-free vulnerability. An attacker who could start and control a VM could possibly use this to expose sensitive information or execute arbitrary code. (CVE-2021-22543)

Murray McAllister discovered that the joystick device interface in the Linux kernel did not properly validate data passed via an ioctl(). A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code on systems with a joystick device registered. (CVE-2021-3612)

It was discovered that the Virtio console implementation in the Linux kernel did not properly validate input lengths in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2021-38160)

Michael Wakabayashi discovered that the NFSv4 client implementation in the Linux kernel did not properly order connection setup operations. An attacker controlling a remote NFS server could use this to cause a denial of service on the client. (CVE-2021-38199)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-26541",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-3612",
              "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": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-22543",
              "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": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L",
                  "type": "CVSS_V4"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-38160",
              "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": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-38199",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-41073",
              "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": "high",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "linux-buildinfo-5.10.0-1049-oem",
            "binary_version": "5.10.0-1049.51"
          },
          {
            "binary_name": "linux-headers-5.10.0-1049-oem",
            "binary_version": "5.10.0-1049.51"
          },
          {
            "binary_name": "linux-image-unsigned-5.10.0-1049-oem",
            "binary_version": "5.10.0-1049.51"
          },
          {
            "binary_name": "linux-modules-5.10.0-1049-oem",
            "binary_version": "5.10.0-1049.51"
          },
          {
            "binary_name": "linux-oem-5.10-headers-5.10.0-1049",
            "binary_version": "5.10.0-1049.51"
          },
          {
            "binary_name": "linux-oem-5.10-tools-5.10.0-1049",
            "binary_version": "5.10.0-1049.51"
          },
          {
            "binary_name": "linux-oem-5.10-tools-host",
            "binary_version": "5.10.0-1049.51"
          },
          {
            "binary_name": "linux-tools-5.10.0-1049-oem",
            "binary_version": "5.10.0-1049.51"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "linux-oem-5.10",
        "purl": "pkg:deb/ubuntu/linux-oem-5.10@5.10.0-1049.51?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.10.0-1049.51"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.10.0-1008.9",
        "5.10.0-1011.12",
        "5.10.0-1013.14",
        "5.10.0-1014.15",
        "5.10.0-1016.17",
        "5.10.0-1017.18",
        "5.10.0-1019.20",
        "5.10.0-1021.22",
        "5.10.0-1022.23",
        "5.10.0-1023.24",
        "5.10.0-1025.26",
        "5.10.0-1026.27",
        "5.10.0-1029.30",
        "5.10.0-1032.33",
        "5.10.0-1033.34",
        "5.10.0-1034.35",
        "5.10.0-1038.40",
        "5.10.0-1044.46",
        "5.10.0-1045.47"
      ]
    }
  ],
  "aliases": [],
  "details": "Valentina Palmiotti discovered that the io_uring subsystem in the Linux\nkernel could be coerced to free adjacent memory. A local attacker could use\nthis to execute arbitrary code. (CVE-2021-41073)\n\nIt was discovered that the Linux kernel did not properly enforce certain\ntypes of entries in the Secure Boot Forbidden Signature Database (aka dbx)\nprotection mechanism. An attacker could use this to bypass UEFI Secure Boot\nrestrictions. (CVE-2020-26541)\n\nIt was discovered that the KVM hypervisor implementation in the Linux\nkernel did not properly perform reference counting in some situations,\nleading to a use-after-free vulnerability. An attacker who could start and\ncontrol a VM could possibly use this to expose sensitive information or\nexecute arbitrary code. (CVE-2021-22543)\n\nMurray McAllister discovered that the joystick device interface in the\nLinux kernel did not properly validate data passed via an ioctl(). A local\nattacker could use this to cause a denial of service (system crash) or\npossibly execute arbitrary code on systems with a joystick device\nregistered. (CVE-2021-3612)\n\nIt was discovered that the Virtio console implementation in the Linux\nkernel did not properly validate input lengths in some situations. A local\nattacker could possibly use this to cause a denial of service (system\ncrash). (CVE-2021-38160)\n\nMichael Wakabayashi discovered that the NFSv4 client implementation in the\nLinux kernel did not properly order connection setup operations. An\nattacker controlling a remote NFS server could use this to cause a denial\nof service on the client. (CVE-2021-38199)\n\n",
  "id": "USN-5106-1",
  "modified": "2026-06-03T10:45:27Z",
  "published": "2021-10-06T19:09:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5106-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-26541"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3612"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-22543"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-38160"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-38199"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-41073"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux-oem-5.10 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2020-26541",
    "UBUNTU-CVE-2021-3612",
    "UBUNTU-CVE-2021-22543",
    "UBUNTU-CVE-2021-38160",
    "UBUNTU-CVE-2021-38199",
    "UBUNTU-CVE-2021-41073"
  ]
}



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