usn-5794-1
Vulnerability from osv_ubuntu
Published
2023-01-06 22:55
Modified
2026-06-25 10:46
Summary
linux-aws 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:Pro:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "linux-aws-cloud-tools-4.4.0-1153",
            "binary_version": "4.4.0-1153.168"
          },
          {
            "binary_name": "linux-aws-headers-4.4.0-1153",
            "binary_version": "4.4.0-1153.168"
          },
          {
            "binary_name": "linux-aws-tools-4.4.0-1153",
            "binary_version": "4.4.0-1153.168"
          },
          {
            "binary_name": "linux-buildinfo-4.4.0-1153-aws",
            "binary_version": "4.4.0-1153.168"
          },
          {
            "binary_name": "linux-cloud-tools-4.4.0-1153-aws",
            "binary_version": "4.4.0-1153.168"
          },
          {
            "binary_name": "linux-headers-4.4.0-1153-aws",
            "binary_version": "4.4.0-1153.168"
          },
          {
            "binary_name": "linux-image-4.4.0-1153-aws",
            "binary_version": "4.4.0-1153.168"
          },
          {
            "binary_name": "linux-modules-4.4.0-1153-aws",
            "binary_version": "4.4.0-1153.168"
          },
          {
            "binary_name": "linux-modules-extra-4.4.0-1153-aws",
            "binary_version": "4.4.0-1153.168"
          },
          {
            "binary_name": "linux-tools-4.4.0-1153-aws",
            "binary_version": "4.4.0-1153.168"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "linux-aws",
        "purl": "pkg:deb/ubuntu/linux-aws@4.4.0-1153.168?arch=source\u0026distro=esm-infra/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.4.0-1153.168"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.4.0-1001.10",
        "4.4.0-1003.12",
        "4.4.0-1004.13",
        "4.4.0-1007.16",
        "4.4.0-1009.18",
        "4.4.0-1011.20",
        "4.4.0-1012.21",
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        "4.4.0-1017.26",
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        "4.4.0-1022.31",
        "4.4.0-1026.35",
        "4.4.0-1028.37",
        "4.4.0-1030.39",
        "4.4.0-1031.40",
        "4.4.0-1032.41",
        "4.4.0-1035.44",
        "4.4.0-1037.46",
        "4.4.0-1038.47",
        "4.4.0-1039.48",
        "4.4.0-1041.50",
        "4.4.0-1043.52",
        "4.4.0-1044.53",
        "4.4.0-1047.56",
        "4.4.0-1048.57",
        "4.4.0-1049.58",
        "4.4.0-1050.59",
        "4.4.0-1052.61",
        "4.4.0-1054.63",
        "4.4.0-1055.64",
        "4.4.0-1057.66",
        "4.4.0-1060.69",
        "4.4.0-1061.70",
        "4.4.0-1062.71",
        "4.4.0-1063.72",
        "4.4.0-1065.75",
        "4.4.0-1066.76",
        "4.4.0-1067.77",
        "4.4.0-1069.79",
        "4.4.0-1070.80",
        "4.4.0-1072.82",
        "4.4.0-1073.83",
        "4.4.0-1074.84",
        "4.4.0-1075.85",
        "4.4.0-1077.87",
        "4.4.0-1079.89",
        "4.4.0-1081.91",
        "4.4.0-1083.93",
        "4.4.0-1084.94",
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        "4.4.0-1105.116",
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        "4.4.0-1111.123",
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        "4.4.0-1114.127",
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        "4.4.0-1121.135",
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        "4.4.0-1123.137",
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        "4.4.0-1126.140",
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        "4.4.0-1129.143",
        "4.4.0-1130.144",
        "4.4.0-1131.145",
        "4.4.0-1132.146",
        "4.4.0-1133.147",
        "4.4.0-1134.148",
        "4.4.0-1135.149",
        "4.4.0-1137.151",
        "4.4.0-1138.152",
        "4.4.0-1139.153",
        "4.4.0-1140.154",
        "4.4.0-1143.158",
        "4.4.0-1145.160",
        "4.4.0-1146.161",
        "4.4.0-1147.162",
        "4.4.0-1148.163",
        "4.4.0-1150.165",
        "4.4.0-1151.166",
        "4.4.0-1152.167"
      ]
    }
  ],
  "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-5794-1",
  "modified": "2026-06-25T10:46:09Z",
  "published": "2023-01-06T22:55:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5794-1"
    },
    {
      "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-aws vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2022-3643",
    "UBUNTU-CVE-2022-42896",
    "UBUNTU-CVE-2022-43945",
    "UBUNTU-CVE-2022-45934"
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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