usn-5595-1
Vulnerability from osv_ubuntu
Published
2022-09-02 21:48
Modified
2026-06-03 10:45
Summary
linux-aws-5.4, linux-azure-5.4 vulnerabilities
Details

Asaf Modelevsky discovered that the Intel(R) 10GbE PCI Express (ixgbe) Ethernet driver for the Linux kernel performed insufficient control flow management. A local attacker could possibly use this to cause a denial of service. (CVE-2021-33061)

It was discovered that the virtual terminal driver in the Linux kernel did not properly handle VGA console font changes, leading to an out-of-bounds write. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33656)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-33061",
              "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": "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-2021-33656",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:P/AC:L/PR:N/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-aws-5.4-cloud-tools-5.4.0-1084",
            "binary_version": "5.4.0-1084.91~18.04.1"
          },
          {
            "binary_name": "linux-aws-5.4-headers-5.4.0-1084",
            "binary_version": "5.4.0-1084.91~18.04.1"
          },
          {
            "binary_name": "linux-aws-5.4-tools-5.4.0-1084",
            "binary_version": "5.4.0-1084.91~18.04.1"
          },
          {
            "binary_name": "linux-buildinfo-5.4.0-1084-aws",
            "binary_version": "5.4.0-1084.91~18.04.1"
          },
          {
            "binary_name": "linux-cloud-tools-5.4.0-1084-aws",
            "binary_version": "5.4.0-1084.91~18.04.1"
          },
          {
            "binary_name": "linux-headers-5.4.0-1084-aws",
            "binary_version": "5.4.0-1084.91~18.04.1"
          },
          {
            "binary_name": "linux-image-unsigned-5.4.0-1084-aws",
            "binary_version": "5.4.0-1084.91~18.04.1"
          },
          {
            "binary_name": "linux-modules-5.4.0-1084-aws",
            "binary_version": "5.4.0-1084.91~18.04.1"
          },
          {
            "binary_name": "linux-modules-extra-5.4.0-1084-aws",
            "binary_version": "5.4.0-1084.91~18.04.1"
          },
          {
            "binary_name": "linux-tools-5.4.0-1084-aws",
            "binary_version": "5.4.0-1084.91~18.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "linux-aws-5.4",
        "purl": "pkg:deb/ubuntu/linux-aws-5.4@5.4.0-1084.91~18.04.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.0-1084.91~18.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
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        "5.4.0-1020.20~18.04.2",
        "5.4.0-1022.22~18.04.1",
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        "5.4.0-1032.33~18.04.1",
        "5.4.0-1034.35~18.04.1",
        "5.4.0-1035.37~18.04.1",
        "5.4.0-1037.39~18.04.1",
        "5.4.0-1038.40~18.04.1",
        "5.4.0-1039.41~18.04.1",
        "5.4.0-1041.43~18.04.1",
        "5.4.0-1043.45~18.04.1",
        "5.4.0-1045.47~18.04.1",
        "5.4.0-1047.49~18.04.1",
        "5.4.0-1048.50~18.04.1",
        "5.4.0-1049.51~18.04.1",
        "5.4.0-1051.53~18.04.1",
        "5.4.0-1054.57~18.04.1",
        "5.4.0-1055.58~18.04.1",
        "5.4.0-1056.59~18.04.1",
        "5.4.0-1057.60~18.04.1",
        "5.4.0-1058.61~18.04.3",
        "5.4.0-1059.62~18.04.1",
        "5.4.0-1060.63~18.04.1",
        "5.4.0-1061.64~18.04.1",
        "5.4.0-1063.66~18.04.1",
        "5.4.0-1064.67~18.04.1",
        "5.4.0-1065.68~18.04.1",
        "5.4.0-1066.69~18.04.1",
        "5.4.0-1068.72~18.04.1",
        "5.4.0-1069.73~18.04.1",
        "5.4.0-1071.76~18.04.1",
        "5.4.0-1072.77~18.04.1",
        "5.4.0-1075.80~18.04.1",
        "5.4.0-1078.84~18.04.1",
        "5.4.0-1080.87~18.04.1",
        "5.4.0-1081.88~18.04.1",
        "5.4.0-1083.90~18.04.1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-33061",
              "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": "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-2021-33656",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:P/AC:L/PR:N/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-azure-5.4-cloud-tools-5.4.0-1090",
            "binary_version": "5.4.0-1090.95~18.04.1"
          },
          {
            "binary_name": "linux-azure-5.4-headers-5.4.0-1090",
            "binary_version": "5.4.0-1090.95~18.04.1"
          },
          {
            "binary_name": "linux-azure-5.4-tools-5.4.0-1090",
            "binary_version": "5.4.0-1090.95~18.04.1"
          },
          {
            "binary_name": "linux-buildinfo-5.4.0-1090-azure",
            "binary_version": "5.4.0-1090.95~18.04.1"
          },
          {
            "binary_name": "linux-cloud-tools-5.4.0-1090-azure",
            "binary_version": "5.4.0-1090.95~18.04.1"
          },
          {
            "binary_name": "linux-headers-5.4.0-1090-azure",
            "binary_version": "5.4.0-1090.95~18.04.1"
          },
          {
            "binary_name": "linux-image-unsigned-5.4.0-1090-azure",
            "binary_version": "5.4.0-1090.95~18.04.1"
          },
          {
            "binary_name": "linux-modules-5.4.0-1090-azure",
            "binary_version": "5.4.0-1090.95~18.04.1"
          },
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            "binary_name": "linux-modules-extra-5.4.0-1090-azure",
            "binary_version": "5.4.0-1090.95~18.04.1"
          },
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            "binary_name": "linux-tools-5.4.0-1090-azure",
            "binary_version": "5.4.0-1090.95~18.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "linux-azure-5.4",
        "purl": "pkg:deb/ubuntu/linux-azure-5.4@5.4.0-1090.95~18.04.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.0-1090.95~18.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
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        "5.4.0-1022.22~18.04.1",
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        "5.4.0-1070.73~18.04.1",
        "5.4.0-1072.75~18.04.1",
        "5.4.0-1073.76~18.04.1",
        "5.4.0-1074.77~18.04.1",
        "5.4.0-1077.80~18.04.1",
        "5.4.0-1078.81~18.04.1",
        "5.4.0-1080.83~18.04.2",
        "5.4.0-1083.87~18.04.1",
        "5.4.0-1085.90~18.04.1",
        "5.4.0-1086.91~18.04.1",
        "5.4.0-1089.94~18.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "\nAsaf Modelevsky discovered that the Intel(R) 10GbE PCI Express (ixgbe)\nEthernet driver for the Linux kernel performed insufficient control flow\nmanagement. A local attacker could possibly use this to cause a denial of\nservice. (CVE-2021-33061)\n\nIt was discovered that the virtual terminal driver in the Linux kernel did\nnot properly handle VGA console font changes, leading to an out-of-bounds\nwrite. A local attacker could use this to cause a denial of service (system\ncrash) or possibly execute arbitrary code. (CVE-2021-33656)\n\n",
  "id": "USN-5595-1",
  "modified": "2026-06-03T10:45:30Z",
  "published": "2022-09-02T21:48:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5595-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-33061"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-33656"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux-aws-5.4, linux-azure-5.4 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2021-33061",
    "UBUNTU-CVE-2021-33656"
  ]
}



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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.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.