usn-5808-1
Vulnerability from osv_ubuntu
Published
2023-01-17 18:00
Modified
2026-06-03 10:45
Summary
linux-ibm-5.4 vulnerabilities
Details

It was discovered that the NFSD implementation in the Linux kernel did not properly handle some RPC messages, leading to a buffer overflow. A remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-43945)

Tamás Koczka discovered that the Bluetooth L2CAP handshake implementation in the Linux kernel contained multiple use-after-free vulnerabilities. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-42896)

It was discovered that the Xen netback driver in the Linux kernel did not properly handle packets structured in certain ways. An attacker in a guest VM could possibly use this to cause a denial of service (host NIC availability). (CVE-2022-3643)

It was discovered that an integer overflow vulnerability existed in the Bluetooth subsystem in the Linux kernel. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2022-45934)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2022-3643",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-42896",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-43945",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-45934",
              "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: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"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "linux-buildinfo-5.4.0-1042-ibm",
            "binary_version": "5.4.0-1042.47~18.04.1"
          },
          {
            "binary_name": "linux-headers-5.4.0-1042-ibm",
            "binary_version": "5.4.0-1042.47~18.04.1"
          },
          {
            "binary_name": "linux-ibm-5.4-cloud-tools-common",
            "binary_version": "5.4.0-1042.47~18.04.1"
          },
          {
            "binary_name": "linux-ibm-5.4-headers-5.4.0-1042",
            "binary_version": "5.4.0-1042.47~18.04.1"
          },
          {
            "binary_name": "linux-ibm-5.4-source-5.4.0",
            "binary_version": "5.4.0-1042.47~18.04.1"
          },
          {
            "binary_name": "linux-ibm-5.4-tools-5.4.0-1042",
            "binary_version": "5.4.0-1042.47~18.04.1"
          },
          {
            "binary_name": "linux-ibm-5.4-tools-common",
            "binary_version": "5.4.0-1042.47~18.04.1"
          },
          {
            "binary_name": "linux-image-unsigned-5.4.0-1042-ibm",
            "binary_version": "5.4.0-1042.47~18.04.1"
          },
          {
            "binary_name": "linux-modules-5.4.0-1042-ibm",
            "binary_version": "5.4.0-1042.47~18.04.1"
          },
          {
            "binary_name": "linux-modules-extra-5.4.0-1042-ibm",
            "binary_version": "5.4.0-1042.47~18.04.1"
          },
          {
            "binary_name": "linux-tools-5.4.0-1042-ibm",
            "binary_version": "5.4.0-1042.47~18.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "linux-ibm-5.4",
        "purl": "pkg:deb/ubuntu/linux-ibm-5.4@5.4.0-1042.47~18.04.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.0-1042.47~18.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.4.0-1010.11~18.04.2",
        "5.4.0-1012.13~18.04.1",
        "5.4.0-1014.15~18.04.1",
        "5.4.0-1015.16~18.04.1",
        "5.4.0-1017.19~18.04.1",
        "5.4.0-1018.20~18.04.1",
        "5.4.0-1019.21~18.04.1",
        "5.4.0-1020.22~18.04.1",
        "5.4.0-1021.23~18.04.1",
        "5.4.0-1023.25~18.04.1",
        "5.4.0-1026.29~18.04.1",
        "5.4.0-1028.32~18.04.1",
        "5.4.0-1029.33~18.04.1",
        "5.4.0-1031.35~18.04.1",
        "5.4.0-1032.36~18.04.1",
        "5.4.0-1033.37~18.04.1",
        "5.4.0-1034.38~18.04.1",
        "5.4.0-1036.41~18.04.1",
        "5.4.0-1037.42~18.04.1",
        "5.4.0-1040.45~18.04.2",
        "5.4.0-1041.46~18.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that the NFSD implementation in the Linux kernel did not\nproperly handle some RPC messages, leading to a buffer overflow. A remote\nattacker could use this to cause a denial of service (system crash) or\npossibly execute arbitrary code. (CVE-2022-43945)\n\nTam\u00e1s Koczka discovered that the Bluetooth L2CAP handshake implementation\nin the Linux kernel contained multiple use-after-free vulnerabilities. A\nphysically proximate attacker could use this to cause a denial of service\n(system crash) or possibly execute arbitrary code. (CVE-2022-42896)\n\nIt was discovered that the Xen netback driver in the Linux kernel did not\nproperly handle packets structured in certain ways. An attacker in a guest\nVM could possibly use this to cause a denial of service (host NIC\navailability). (CVE-2022-3643)\n\nIt was discovered that an integer overflow vulnerability existed in the\nBluetooth subsystem in the Linux kernel. A physically proximate attacker\ncould use this to cause a denial of service (system crash).\n(CVE-2022-45934)\n\n",
  "id": "USN-5808-1",
  "modified": "2026-06-03T10:45:31Z",
  "published": "2023-01-17T18:00:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5808-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-3643"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-42896"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-43945"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-45934"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux-ibm-5.4 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2022-3643",
    "UBUNTU-CVE-2022-42896",
    "UBUNTU-CVE-2022-43945",
    "UBUNTU-CVE-2022-45934"
  ]
}



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