botan project botan 1.11.29 vulnerabilities and exploits

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In Botan 1.11.29 up to and including 1.11.32, RSA decryption with certain padding options had a detectable timing channel which could given sufficient queries be used to recover plaintext, aka an "OAEP side channel" attack.

Botan Project Botan 1.11.32 Botan Project Botan 1.11.30 Botan Project Botan 1.11.31 Botan Project Botan 1.11.29

Botan prior to 1.10.13 and 1.11.x prior to 1.11.29 do not use a constant-time algorithm to perform a modular inverse on the signature nonce k, which might allow remote malicious users to obtain ECDSA secret keys via a timing side-channel attack.

In Botan 1.8.0 up to and including 1.11.33, when decoding BER data an integer overflow could occur, which would cause an incorrect length field to be computed. Some API callers may use the returned (incorrect and attacker controlled) length field in a way which later causes memor...

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