ubuntu-cve-2021-24115
Vulnerability from osv_ubuntu
Published
2021-02-22 02:15
Modified
2026-04-22 07:39
Summary
Details

In Botan before 2.17.3, constant-time computations are not used for certain decoding and encoding operations (base32, base58, base64, and hex).

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

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libbotan-1.10-0",
            "binary_version": "1.10.5-1+deb7u1ubuntu0.14.04.1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "botan1.10",
        "purl": "pkg:deb/ubuntu/botan1.10@1.10.5-1+deb7u1ubuntu0.14.04.1+esm1?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.10.5-1",
        "1.10.5-1ubuntu1",
        "1.10.5-1+deb7u1ubuntu0.14.04.1",
        "1.10.5-1+deb7u1ubuntu0.14.04.1+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libbotan-1.10-1",
            "binary_version": "1.10.12-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "botan1.10",
        "purl": "pkg:deb/ubuntu/botan1.10@1.10.12-1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.10.10-6",
        "1.10.12-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "botan",
            "binary_version": "2.4.0-5ubuntu1"
          },
          {
            "binary_name": "libbotan-2-4",
            "binary_version": "2.4.0-5ubuntu1"
          },
          {
            "binary_name": "python3-botan",
            "binary_version": "2.4.0-5ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "botan",
        "purl": "pkg:deb/ubuntu/botan@2.4.0-5ubuntu1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.4.0-3",
        "2.4.0-4",
        "2.4.0-5ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libbotan-1.10-1",
            "binary_version": "1.10.17-0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "botan1.10",
        "purl": "pkg:deb/ubuntu/botan1.10@1.10.17-0.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.10.16-1",
        "1.10.17-0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "botan",
            "binary_version": "2.12.1-2build1"
          },
          {
            "binary_name": "libbotan-2-12",
            "binary_version": "2.12.1-2build1"
          },
          {
            "binary_name": "python3-botan",
            "binary_version": "2.12.1-2build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "botan",
        "purl": "pkg:deb/ubuntu/botan@2.12.1-2build1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.9.0-2",
        "2.9.0-2build1",
        "2.12.1-2",
        "2.12.1-2build1"
      ]
    }
  ],
  "aliases": [],
  "details": "In Botan before 2.17.3, constant-time computations are not used for certain decoding and encoding operations (base32, base58, base64, and hex).",
  "id": "UBUNTU-CVE-2021-24115",
  "modified": "2026-04-22T07:39:56Z",
  "published": "2021-02-22T02:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-24115"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/randombit/botan/pull/2549"
    },
    {
      "type": "REPORT",
      "url": "https://botan.randombit.net/news.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/randombit/botan/compare/2.17.2...2.17.3"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-24115"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-24115"
  ]
}



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