ubuntu-cve-2024-34702
Vulnerability from osv_ubuntu
Published
2024-07-08 17:15
Modified
2026-04-22 07:48
Summary
Details

Botan is a C++ cryptography library. X.509 certificates can identify elliptic curves using either an object identifier or using explicit encoding of the parameters. Prior to 3.5.0 and 2.19.5, checking name constraints in X.509 certificates is quadratic in the number of names and name constraints. An attacker who presented a certificate chain which contained a very large number of names in the SubjectAlternativeName, signed by a CA certificate which contained a large number of name constraints, could cause a denial of service. The problem has been addressed in Botan 3.5.0 and a partial backport has also been applied and is included in Botan 2.19.5.

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

{
  "affected": [
    {
      "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": "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"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "botan",
            "binary_version": "2.19.1+dfsg-2ubuntu1+esm1"
          },
          {
            "binary_name": "libbotan-2-19",
            "binary_version": "2.19.1+dfsg-2ubuntu1+esm1"
          },
          {
            "binary_name": "python3-botan",
            "binary_version": "2.19.1+dfsg-2ubuntu1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "botan",
        "purl": "pkg:deb/ubuntu/botan@2.19.1+dfsg-2ubuntu1+esm1?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.19.1+dfsg-2ubuntu1+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.17.3+dfsg-3",
        "2.19.1+dfsg-2ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "botan",
            "binary_version": "2.19.3+dfsg-1ubuntu2+esm1"
          },
          {
            "binary_name": "libbotan-2-19",
            "binary_version": "2.19.3+dfsg-1ubuntu2+esm1"
          },
          {
            "binary_name": "python3-botan",
            "binary_version": "2.19.3+dfsg-1ubuntu2+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "botan",
        "purl": "pkg:deb/ubuntu/botan@2.19.3+dfsg-1ubuntu2+esm1?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.19.3+dfsg-1ubuntu2+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.19.3+dfsg-1ubuntu1",
        "2.19.3+dfsg-1ubuntu2"
      ]
    }
  ],
  "aliases": [],
  "details": "Botan is a C++ cryptography library. X.509 certificates can identify elliptic curves using either an object identifier or using explicit encoding of the parameters.  Prior to 3.5.0 and 2.19.5, checking name constraints in X.509 certificates is quadratic in the number of names and name constraints. An attacker who presented a certificate chain which contained a very large number of names in the SubjectAlternativeName, signed by a CA certificate which contained a large number of name constraints, could cause a denial of service. The problem has been addressed in Botan 3.5.0 and a partial backport has also been applied and is included in Botan 2.19.5.",
  "id": "UBUNTU-CVE-2024-34702",
  "modified": "2026-04-22T07:48:48Z",
  "published": "2024-07-08T17:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-34702"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-34702"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/randombit/botan/security/advisories/GHSA-5gg9-hqpr-r58j"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/randombit/botan/pull/4034"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/randombit/botan/pull/4045"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/randombit/botan/pull/4047"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/randombit/botan/pull/4052"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/randombit/botan/pull/4186"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/randombit/botan/pull/4187"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/randombit/botan/commit/21dccc8fef18c165ba3301d850ac61521f85637e"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/randombit/botan/commit/39535f13c322f56aa3da2f44b2b6abb8619a82ac"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/randombit/botan/commit/477822a2d10f02d8ba46c9d8a5132f25843f5cc1"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/randombit/botan/commit/7606d70d3a2ac7114476ec2651ca0243c4536fdf"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/randombit/botan/commit/c3264821b9f6286ee4e6e3e06826f6b7177e6d41"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/randombit/botan/commit/ff704b12e6fa351aaedd07bffdc91722e84586b8"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7586-1"
    }
  ],
  "related": [
    "USN-7586-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2024-34702"
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.