CVSS: 5.3EPSS: 0%CPEs: 2EXPL: 0CVE-2024-39312 – Botan has an Authorization Error due to Name Constraint Decoding Bug
https://notcve.org/view.php?id=CVE-2024-39312
08 Jul 2024 — 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. A bug in the parsing of name constraint extensions in X.509 certificates meant that if the extension included both permitted subtrees and excluded subtrees, only the permitted subtree would be checked. If a certificate included a name which was permitted by the permitted subtree but also excluded by excluded subtree, it would be accepted. Fixed ... • https://github.com/randombit/botan/security/advisories/GHSA-jp24-56jm-gg86 • CWE-295: Improper Certificate Validation •
CVSS: 5.3EPSS: 0%CPEs: 2EXPL: 0CVE-2024-34702 – Botan has a Denial of Service Due to Excessive Name Constraints
https://notcve.org/view.php?id=CVE-2024-34702
08 Jul 2024 — 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... • https://github.com/randombit/botan/commit/21dccc8fef18c165ba3301d850ac61521f85637e • CWE-405: Asymmetric Resource Consumption (Amplification) •
CVSS: 7.5EPSS: 0%CPEs: 2EXPL: 0CVE-2024-34703 – Botan Vulnerable to Denial of Service Due to Overly Large Elliptic Curve Parameters
https://notcve.org/view.php?id=CVE-2024-34703
30 Jun 2024 — 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 versions 3.3.0 and 2.19.4, an attacker could present an ECDSA X.509 certificate using explicit encoding where the parameters are very large. The proof of concept used a 16Kbit prime for this purpose. When parsing, the parameter is checked to be prime, causing excessive computation. • https://github.com/randombit/botan/commit/08c404b23740babee1f6aa51b54e966029aadee4 • CWE-405: Asymmetric Resource Consumption (Amplification) CWE-770: Allocation of Resources Without Limits or Throttling •