usn-5706-1
Vulnerability from osv_ubuntu
Published
2022-10-27 19:09
Modified
2026-06-03 10:45
Summary
linux-azure-fde vulnerabilities
Details

It was discovered that the BPF verifier in the Linux kernel did not properly handle internal data structures. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2021-4159)

It was discovered that an out-of-bounds write vulnerability existed in the Video for Linux 2 (V4L2) implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-20369)

Duoming Zhou discovered that race conditions existed in the timer handling implementation of the Linux kernel's Rose X.25 protocol layer, resulting in use-after-free vulnerabilities. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-2318)

Roger Pau Monné discovered that the Xen virtual block driver in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-26365)

Pawan Kumar Gupta, Alyssa Milburn, Amit Peled, Shani Rehana, Nir Shildan and Ariel Sabba discovered that some Intel processors with Enhanced Indirect Branch Restricted Speculation (eIBRS) did not properly handle RET instructions after a VM exits. A local attacker could potentially use this to expose sensitive information. (CVE-2022-26373)

Eric Biggers discovered that a use-after-free vulnerability existed in the io_uring subsystem in the Linux kernel. A local attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-3176)

Roger Pau Monné discovered that the Xen paravirtualization frontend in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-33740)

It was discovered that the Xen paravirtualization frontend in the Linux kernel incorrectly shared unrelated data when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash) or expose sensitive information (guest kernel memory). (CVE-2022-33741, CVE-2022-33742)

Oleksandr Tyshchenko discovered that the Xen paravirtualization platform in the Linux kernel on ARM platforms contained a race condition in certain situations. An attacker in a guest VM could use this to cause a denial of service in the host OS. (CVE-2022-33744)

It was discovered that the Netlink Transformation (XFRM) subsystem in the Linux kernel contained a reference counting error. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-36879)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "linux-image-unsigned-5.4.0-1092-azure-fde",
            "binary_version": "5.4.0-1092.97+cvm1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "linux-azure-fde",
        "purl": "pkg:deb/ubuntu/linux-azure-fde@5.4.0-1092.97+cvm1.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.0-1092.97+cvm1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.4.0-1063.66+cvm2.2",
        "5.4.0-1063.66+cvm3.2",
        "5.4.0-1064.67+cvm1.1",
        "5.4.0-1065.68+cvm2.1",
        "5.4.0-1067.70+cvm1.1",
        "5.4.0-1068.71+cvm1.1",
        "5.4.0-1069.72+cvm1.1",
        "5.4.0-1070.73+cvm1.1",
        "5.4.0-1072.75+cvm1.1",
        "5.4.0-1073.76+cvm1.1",
        "5.4.0-1074.77+cvm1.1",
        "5.4.0-1076.79+cvm1.1",
        "5.4.0-1078.81+cvm1.1",
        "5.4.0-1080.83+cvm1.1",
        "5.4.0-1083.87+cvm1.1",
        "5.4.0-1085.90+cvm1.1",
        "5.4.0-1085.90+cvm2.1",
        "5.4.0-1086.91+cvm1.1",
        "5.4.0-1089.94+cvm1.2",
        "5.4.0-1090.95+cvm1.1",
        "5.4.0-1091.96+cvm1.1"
      ]
    }
  ],
  "aliases": [],
  "details": "\nIt was discovered that the BPF verifier in the Linux kernel did not\nproperly handle internal data structures. A local attacker could use this\nto expose sensitive information (kernel memory). (CVE-2021-4159)\n\nIt was discovered that an out-of-bounds write vulnerability existed in the\nVideo for Linux 2 (V4L2) implementation in the Linux kernel. A local\nattacker could use this to cause a denial of service (system crash) or\npossibly execute arbitrary code. (CVE-2022-20369)\n\nDuoming Zhou discovered that race conditions existed in the timer handling\nimplementation of the Linux kernel\u0027s Rose X.25 protocol layer, resulting in\nuse-after-free vulnerabilities. A local attacker could use this to cause a\ndenial of service (system crash). (CVE-2022-2318)\n\nRoger Pau Monn\u00e9 discovered that the Xen virtual block driver in the Linux\nkernel did not properly initialize memory pages to be used for shared\ncommunication with the backend. A local attacker could use this to expose\nsensitive information (guest kernel memory). (CVE-2022-26365)\n\nPawan Kumar Gupta, Alyssa Milburn, Amit Peled, Shani Rehana, Nir Shildan\nand Ariel Sabba discovered that some Intel processors with Enhanced\nIndirect Branch Restricted Speculation (eIBRS) did not properly handle RET\ninstructions after a VM exits. A local attacker could potentially use this\nto expose sensitive information. (CVE-2022-26373)\n\nEric Biggers discovered that a use-after-free vulnerability existed in the\nio_uring subsystem in the Linux kernel. A local attacker could possibly use\nthis to cause a denial of service (system crash) or possibly execute\narbitrary code. (CVE-2022-3176)\n\nRoger Pau Monn\u00e9 discovered that the Xen paravirtualization frontend in the\nLinux kernel did not properly initialize memory pages to be used for shared\ncommunication with the backend. A local attacker could use this to expose\nsensitive information (guest kernel memory). (CVE-2022-33740)\n\nIt was discovered that the Xen paravirtualization frontend in the Linux\nkernel incorrectly shared unrelated data when communicating with certain\nbackends. A local attacker could use this to cause a denial of service\n(guest crash) or expose sensitive information (guest kernel memory).\n(CVE-2022-33741, CVE-2022-33742)\n\nOleksandr Tyshchenko discovered that the Xen paravirtualization platform in\nthe Linux kernel on ARM platforms contained a race condition in certain\nsituations. An attacker in a guest VM could use this to cause a denial of\nservice in the host OS. (CVE-2022-33744)\n\nIt was discovered that the Netlink Transformation (XFRM) subsystem in the\nLinux kernel contained a reference counting error. A local attacker could\nuse this to cause a denial of service (system crash). (CVE-2022-36879)\n\n",
  "id": "USN-5706-1",
  "modified": "2026-06-03T10:45:30Z",
  "published": "2022-10-27T19:09:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5706-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-4159"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-2318"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-3176"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-20369"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-26365"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-26373"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-33740"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-33741"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-33742"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-33744"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-36879"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux-azure-fde vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2021-4159",
    "UBUNTU-CVE-2022-2318",
    "UBUNTU-CVE-2022-3176",
    "UBUNTU-CVE-2022-20369",
    "UBUNTU-CVE-2022-26365",
    "UBUNTU-CVE-2022-26373",
    "UBUNTU-CVE-2022-33740",
    "UBUNTU-CVE-2022-33741",
    "UBUNTU-CVE-2022-33742",
    "UBUNTU-CVE-2022-33744",
    "UBUNTU-CVE-2022-36879"
  ]
}



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