ubuntu-cve-2021-32494
Vulnerability from osv_ubuntu
Published
2023-07-07 19:15
Modified
2026-04-22 07:40
Summary
Details

Radare2 has a division by zero vulnerability in Mach-O parser's rebase_buffer function. This allow attackers to create malicious inputs that can cause denial of service.

Severity
10.0 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libradare2-0.9.6",
            "binary_version": "0.9.6-3.1ubuntu1"
          },
          {
            "binary_name": "libradare2-common",
            "binary_version": "0.9.6-3.1ubuntu1"
          },
          {
            "binary_name": "radare2",
            "binary_version": "0.9.6-3.1ubuntu1"
          },
          {
            "binary_name": "radare2-plugins",
            "binary_version": "0.9.6-3.1ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "radare2",
        "purl": "pkg:deb/ubuntu/radare2@0.9.6-3.1ubuntu1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.9.6-3.1ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libradare2-2.3",
            "binary_version": "2.3.0+dfsg-2ubuntu0.1~esm1"
          },
          {
            "binary_name": "libradare2-common",
            "binary_version": "2.3.0+dfsg-2ubuntu0.1~esm1"
          },
          {
            "binary_name": "radare2",
            "binary_version": "2.3.0+dfsg-2ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "radare2",
        "purl": "pkg:deb/ubuntu/radare2@2.3.0+dfsg-2ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.0+dfsg-1",
        "2.0.0+dfsg-1",
        "2.1.0+dfsg-1",
        "2.3.0+dfsg-1",
        "2.3.0+dfsg-2",
        "2.3.0+dfsg-2ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libradare2-4.2.1",
            "binary_version": "4.2.1+dfsg-2ubuntu0.1~esm1"
          },
          {
            "binary_name": "libradare2-common",
            "binary_version": "4.2.1+dfsg-2ubuntu0.1~esm1"
          },
          {
            "binary_name": "radare2",
            "binary_version": "4.2.1+dfsg-2ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "radare2",
        "purl": "pkg:deb/ubuntu/radare2@4.2.1+dfsg-2ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.2.1+dfsg-5build1",
        "4.0.0+dfsg-1",
        "4.2.1+dfsg-1",
        "4.2.1+dfsg-2",
        "4.2.1+dfsg-2ubuntu0.1~esm1"
      ]
    }
  ],
  "aliases": [],
  "details": "Radare2 has a division by zero vulnerability in Mach-O parser\u0027s rebase_buffer function. This allow attackers to create malicious inputs that can cause denial of service.",
  "id": "UBUNTU-CVE-2021-32494",
  "modified": "2026-04-22T07:40:03Z",
  "published": "2023-07-07T19:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-32494"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/radareorg/radare2/issues/18667"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/radareorg/radare2/commit/a07dedb804a82bc01c07072861942dd80c6b6d62"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-32494"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/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": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-32494"
  ]
}



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