CVE-2024-34702

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.
References
Link Resource
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
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/security/advisories/GHSA-5gg9-hqpr-r58j
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
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/security/advisories/GHSA-5gg9-hqpr-r58j
Configurations

No configuration.

History

21 Nov 2024, 09:19

Type Values Removed Values Added
References () https://github.com/randombit/botan/commit/21dccc8fef18c165ba3301d850ac61521f85637e - () https://github.com/randombit/botan/commit/21dccc8fef18c165ba3301d850ac61521f85637e -
References () https://github.com/randombit/botan/commit/39535f13c322f56aa3da2f44b2b6abb8619a82ac - () https://github.com/randombit/botan/commit/39535f13c322f56aa3da2f44b2b6abb8619a82ac -
References () https://github.com/randombit/botan/commit/477822a2d10f02d8ba46c9d8a5132f25843f5cc1 - () https://github.com/randombit/botan/commit/477822a2d10f02d8ba46c9d8a5132f25843f5cc1 -
References () https://github.com/randombit/botan/commit/7606d70d3a2ac7114476ec2651ca0243c4536fdf - () https://github.com/randombit/botan/commit/7606d70d3a2ac7114476ec2651ca0243c4536fdf -
References () https://github.com/randombit/botan/commit/c3264821b9f6286ee4e6e3e06826f6b7177e6d41 - () https://github.com/randombit/botan/commit/c3264821b9f6286ee4e6e3e06826f6b7177e6d41 -
References () https://github.com/randombit/botan/commit/ff704b12e6fa351aaedd07bffdc91722e84586b8 - () https://github.com/randombit/botan/commit/ff704b12e6fa351aaedd07bffdc91722e84586b8 -
References () https://github.com/randombit/botan/pull/4034 - () https://github.com/randombit/botan/pull/4034 -
References () https://github.com/randombit/botan/pull/4045 - () https://github.com/randombit/botan/pull/4045 -
References () https://github.com/randombit/botan/pull/4047 - () https://github.com/randombit/botan/pull/4047 -
References () https://github.com/randombit/botan/pull/4052 - () https://github.com/randombit/botan/pull/4052 -
References () https://github.com/randombit/botan/pull/4186 - () https://github.com/randombit/botan/pull/4186 -
References () https://github.com/randombit/botan/pull/4187 - () https://github.com/randombit/botan/pull/4187 -
References () https://github.com/randombit/botan/security/advisories/GHSA-5gg9-hqpr-r58j - () https://github.com/randombit/botan/security/advisories/GHSA-5gg9-hqpr-r58j -

09 Jul 2024, 18:19

Type Values Removed Values Added
Summary
  • (es) Botan es una librería de criptografía C++. Los certificados X.509 pueden identificar curvas elípticas utilizando un identificador de objeto o una codificación explícita de los parámetros. Antes de 3.5.0 y 2.19.5, la verificación de las restricciones de nombres en los certificados X.509 era cuadrática en el número de nombres y restricciones de nombres. Un atacante que presentara una cadena de certificados que contuviera una gran cantidad de nombres en el SubjectAlternativeName, firmado por un certificado de CA que contuviera una gran cantidad de restricciones de nombres, podría provocar una denegación de servicio. El problema se solucionó en Botan 3.5.0 y también se aplicó un backport parcial que se incluye en Botan 2.19.5.

08 Jul 2024, 17:15

Type Values Removed Values Added
New CVE

Information

Published : 2024-07-08 17:15

Updated : 2024-11-21 09:19


NVD link : CVE-2024-34702

Mitre link : CVE-2024-34702

CVE.ORG link : CVE-2024-34702


JSON object : View

Products Affected

No product.

CWE
CWE-405

Asymmetric Resource Consumption (Amplification)