CVE-2024-34702: fallo de gravedad media en randombit botan
Botan has a Denial of Service Due to Excessive Name Constraints
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 5.3epss 0.8%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Productos afectados
randombit · botanCVEs relacionadas — randombit botan
En el mismo producto, de las más peligrosas a las menos.
CVE-2024-34703HIGHBotan Vulnerable to Denial of Service Due to Overly Large Elliptic Curve ParametersEPSS 0.5%CVE-2026-34580CRITICALBotan has a certificate authentication bypass due to trust anchor confusionEPSS 0.5%CVE-2026-118769CRITICALBotan: Integer overflow when reporting block size in FFI can cause memory corruptionEPSS 0.4%CVE-2026-44378MEDIUMBotan: Quadratic complexity decoding BER indefinite length encodingsEPSS 0.3%CVE-2026-32877HIGHBotan: Heap Buffer Over-read in SM2 Decryption via Undersized C3 Hash FieldEPSS 0.3%CVE-2024-39312MEDIUMBotan has an Authorization Error due to Name Constraint Decoding BugEPSS 0.3%
Referencias
https://github.com/randombit/botan/commit/21dccc8fef18c165ba3301d850ac61521f85637ehttps://github.com/randombit/botan/commit/39535f13c322f56aa3da2f44b2b6abb8619a82achttps://github.com/randombit/botan/commit/477822a2d10f02d8ba46c9d8a5132f25843f5cc1https://github.com/randombit/botan/commit/7606d70d3a2ac7114476ec2651ca0243c4536fdfhttps://github.com/randombit/botan/commit/c3264821b9f6286ee4e6e3e06826f6b7177e6d41https://github.com/randombit/botan/commit/ff704b12e6fa351aaedd07bffdc91722e84586b8https://github.com/randombit/botan/pull/4034https://github.com/randombit/botan/pull/4045https://github.com/randombit/botan/pull/4047https://github.com/randombit/botan/pull/4052https://github.com/randombit/botan/pull/4186https://github.com/randombit/botan/pull/4187