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usn-5218-1
Vulnerability from osv_ubuntu
Published
2022-01-11 04:58
Modified
2026-09-09 11:23
Summary
linux-oem-5.13 vulnerabilities
Details

Nadav Amit discovered that the hugetlb implementation in the Linux kernel did not perform TLB flushes under certain conditions. A local attacker could use this to leak or alter data from other processes that use huge pages. (CVE-2021-4002)

It was discovered that the eBPF implementation in the Linux kernel did not properly validate the memory size of certain ring buffer operation arguments. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-4204)

It was discovered that a race condition existed in the overlay file system implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2021-20321)

It was discovered that the NFC subsystem in the Linux kernel contained a use-after-free vulnerability in its NFC Controller Interface (NCI) implementation. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-3760)

It was discovered that an integer overflow could be triggered in the eBPF implementation in the Linux kernel when preallocating objects for stack maps. A privileged local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-41864)

It was discovered that the KVM implementation for POWER8 processors in the Linux kernel did not properly keep track if a wakeup event could be resolved by a guest. An attacker in a guest VM could possibly use this to cause a denial of service (host OS crash). (CVE-2021-43056)

It was discovered that the TIPC Protocol implementation in the Linux kernel did not properly validate MSG_CRYPTO messages in some situations. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-43267)

It was discovered that the ISDN CAPI implementation in the Linux kernel contained a race condition in certain situations that could trigger an array out-of-bounds bug. A privileged local attacker could possibly use this to cause a denial of service or execute arbitrary code. (CVE-2021-43389)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-3760",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "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"
                }
              ]
            },
            {
              "id": "CVE-2021-4002",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-4204",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-20321",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-41864",
              "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"
                }
              ]
            },
            {
              "id": "CVE-2021-43056",
              "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-2021-43267",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-43389",
              "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": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "linux-buildinfo-5.13.0-1026-oem",
            "binary_version": "5.13.0-1026.32"
          },
          {
            "binary_name": "linux-headers-5.13.0-1026-oem",
            "binary_version": "5.13.0-1026.32"
          },
          {
            "binary_name": "linux-image-unsigned-5.13.0-1026-oem",
            "binary_version": "5.13.0-1026.32"
          },
          {
            "binary_name": "linux-modules-5.13.0-1026-oem",
            "binary_version": "5.13.0-1026.32"
          },
          {
            "binary_name": "linux-oem-5.13-headers-5.13.0-1026",
            "binary_version": "5.13.0-1026.32"
          },
          {
            "binary_name": "linux-oem-5.13-tools-5.13.0-1026",
            "binary_version": "5.13.0-1026.32"
          },
          {
            "binary_name": "linux-oem-5.13-tools-host",
            "binary_version": "5.13.0-1026.32"
          },
          {
            "binary_name": "linux-tools-5.13.0-1026-oem",
            "binary_version": "5.13.0-1026.32"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "linux-oem-5.13",
        "purl": "pkg:deb/ubuntu/linux-oem-5.13@5.13.0-1026.32?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.13.0-1026.32"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.13.0-1009.10",
        "5.13.0-1010.11",
        "5.13.0-1012.16",
        "5.13.0-1014.18",
        "5.13.0-1017.21",
        "5.13.0-1019.23",
        "5.13.0-1020.24",
        "5.13.0-1021.25",
        "5.13.0-1022.26"
      ]
    }
  ],
  "aliases": [],
  "details": "Nadav Amit discovered that the hugetlb implementation in the Linux kernel\ndid not perform TLB flushes under certain conditions. A local attacker\ncould use this to leak or alter data from other processes that use huge\npages. (CVE-2021-4002)\n\nIt was discovered that the eBPF implementation in the Linux kernel did\nnot properly validate the memory size of certain ring buffer operation\narguments. A local attacker could use this to cause a denial of service\n(system crash) or possibly execute arbitrary code. (CVE-2021-4204)\n\nIt was discovered that a race condition existed in the overlay file system\nimplementation in the Linux kernel. A local attacker could use this to\ncause a denial of service (system crash). (CVE-2021-20321)\n\nIt was discovered that the NFC subsystem in the Linux kernel contained a\nuse-after-free vulnerability in its NFC Controller Interface (NCI)\nimplementation. A local attacker could possibly use this to cause a denial\nof service (system crash) or execute arbitrary code. (CVE-2021-3760)\n\nIt was discovered that an integer overflow could be triggered in the eBPF\nimplementation in the Linux kernel when preallocating objects for stack\nmaps. A privileged local attacker could use this to cause a denial of\nservice or possibly execute arbitrary code. (CVE-2021-41864)\n\nIt was discovered that the KVM implementation for POWER8 processors in the\nLinux kernel did not properly keep track if a wakeup event could be\nresolved by a guest. An attacker in a guest VM could possibly use this to\ncause a denial of service (host OS crash). (CVE-2021-43056)\n\nIt was discovered that the TIPC Protocol implementation in the Linux kernel\ndid not properly validate MSG_CRYPTO messages in some situations. An\nattacker could use this to cause a denial of service (system crash) or\npossibly execute arbitrary code. (CVE-2021-43267)\n\nIt was discovered that the ISDN CAPI implementation in the Linux kernel\ncontained a race condition in certain situations that could trigger an\narray out-of-bounds bug. A privileged local attacker could possibly use\nthis to cause a denial of service or execute arbitrary code.\n(CVE-2021-43389)\n\n",
  "id": "USN-5218-1",
  "modified": "2026-09-09T11:23:29Z",
  "published": "2022-01-11T04:58:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5218-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3760"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-4002"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-4204"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-20321"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-41864"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-43056"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-43267"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-43389"
    },
    {
      "type": "REPORT",
      "url": "https://launchpad.net/bugs/1956585"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux-oem-5.13 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2021-3760",
    "UBUNTU-CVE-2021-4002",
    "UBUNTU-CVE-2021-4204",
    "UBUNTU-CVE-2021-20321",
    "UBUNTU-CVE-2021-41864",
    "UBUNTU-CVE-2021-43056",
    "UBUNTU-CVE-2021-43267",
    "UBUNTU-CVE-2021-43389"
  ]
}



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