ubuntu-cve-2021-33460
Vulnerability from osv_ubuntu
Published
2022-07-26 13:15
Modified
2026-05-20 14:53
Summary
Details

An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in if_condition() in modules/preprocs/nasm/nasm-pp.c.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "yasm",
            "binary_version": "1.3.0-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "yasm",
        "purl": "pkg:deb/ubuntu/yasm@1.3.0-2?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.3.0-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "yasm",
            "binary_version": "1.3.0-2build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "yasm",
        "purl": "pkg:deb/ubuntu/yasm@1.3.0-2build1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.3.0-2",
        "1.3.0-2build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "yasm",
            "binary_version": "1.3.0-2ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "yasm",
        "purl": "pkg:deb/ubuntu/yasm@1.3.0-2ubuntu1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.3.0-2build1",
        "1.3.0-2ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "yasm",
            "binary_version": "1.3.0-2.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "yasm",
        "purl": "pkg:deb/ubuntu/yasm@1.3.0-2.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.3.0-2.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "yasm",
            "binary_version": "1.3.0-4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "yasm",
        "purl": "pkg:deb/ubuntu/yasm@1.3.0-4?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.3.0-4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "yasm",
            "binary_version": "1.3.0-7"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "yasm",
        "purl": "pkg:deb/ubuntu/yasm@1.3.0-7?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.3.0-5",
        "1.3.0-7"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "yasm",
            "binary_version": "1.3.0-8"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "yasm",
        "purl": "pkg:deb/ubuntu/yasm@1.3.0-8?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.3.0-7",
        "1.3.0-8"
      ]
    }
  ],
  "aliases": [],
  "details": "An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in if_condition() in modules/preprocs/nasm/nasm-pp.c.",
  "id": "UBUNTU-CVE-2021-33460",
  "modified": "2026-05-20T14:53:22Z",
  "published": "2022-07-26T13:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-33460"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/yasm/yasm/issues/168"
    },
    {
      "type": "REPORT",
      "url": "https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6d"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-33460"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-33460"
  ]
}



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