Botan has a Denial of Service Due to Excessive Name Constraints (randombit botan)
En bref
- Source
- NVD
- EPSS
- EPSS 0.84 % · centile 58 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- GitHub_M
- Statut NVD
- Deferred
Description
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.
Faiblesses (CWE)
- CWE-405 — Consommation asymétrique de ressources (amplification)
Références
- https://github.com/randombit/botan/security/advisories/GHSA-5gg9-hqpr-r58j
- https://github.com/randombit/botan/pull/4034
- https://github.com/randombit/botan/pull/4045
- https://github.com/randombit/botan/pull/4047
- https://github.com/randombit/botan/pull/4052
- https://github.com/randombit/botan/pull/4186
- https://github.com/randombit/botan/pull/4187
- https://github.com/randombit/botan/commit/21dccc8fef18c165ba3301d850ac61521f85637e
- https://github.com/randombit/botan/commit/39535f13c322f56aa3da2f44b2b6abb8619a82ac
- https://github.com/randombit/botan/commit/477822a2d10f02d8ba46c9d8a5132f25843f5cc1
- https://github.com/randombit/botan/commit/7606d70d3a2ac7114476ec2651ca0243c4536fdf
- https://github.com/randombit/botan/commit/c3264821b9f6286ee4e6e3e06826f6b7177e6d41
- https://github.com/randombit/botan/commit/ff704b12e6fa351aaedd07bffdc91722e84586b8
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | GitHub_M |
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | NVD · security-advisories@github.com (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2024-34997
- GCVE · GCVE-0-2024-34702
Produits affectés
| Produit | Versions |
|---|---|
| randombit · botan | affected < 2.19.5 ; affected >= 3.0.0, < 3.5.0 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |