CVE-2015-7824
HighSummary
Botan versions 1.11.x before 1.11.22 are vulnerable to a padding-oracle attack that allows remote attackers to decrypt TLS ciphertext data using CBC ciphersuites.
Risk Assessment
Attackers may gain access to sensitive information transmitted over TLS, potentially leading to serious data security breaches.
Recommendation
It is recommended to update the Botan library to version 1.11.22 or later to mitigate the risks associated with this vulnerability.
Other vulnerabilities in Botan
See all- CVE-2015-7825High
Botan before 1.11.22 improperly validates certificate paths, allowing remote attackers to cause a denial of service via a certificate with a loop in the certificate chain.
- CVE-2016-2850High
Botan versions 1.11.x before 1.11.29 do not enforce TLS policy for signature algorithms and ECC curves, allowing remote attackers to conduct downgrade attacks.
- CVE-2016-2849High
Botan before 1.10.13 and 1.11.x before 1.11.29 do not use a constant-time algorithm to perform a modular inverse on the signature nonce k, which might allow remote attackers to obtain ECDSA secret keys via a timing side-channel attack.
- CVE-2016-2194High
The ressol function in Botan before 1.10.11 and 1.11.x before 1.11.27 allows remote attackers to cause a denial of service (infinite loop) via unspecified input to the OS2ECP function, related to a composite modulus.
- CVE-2015-7827High
Botan before 1.10.13 and 1.11.x before 1.11.22 makes it easier for remote attackers to conduct million-message attacks by measuring time differences related to decoding of PKCS#1 padding.
- CVE-2015-5727High
The BER decoder in Botan 1.10.x before 1.10.10 and 1.11.x before 1.11.19 allows remote attackers to cause a denial of service (memory consumption) via unspecified vectors, related to a length field.
- CVE-2015-5726High
The BER decoder in Botan versions 0.10.x before 1.10.10 and 1.11.x before 1.11.19 allows remote attackers to cause an application crash via an empty BIT STRING in ASN.1 data.
- CVE-2014-9742High
The Miller-Rabin primality check in Botan before 1.10.8 and 1.11.x before 1.11.9 improperly uses a single random base, making it easier for remote attackers to defeat cryptographic protection mechanisms via a DH group.
- CVE-2026-34582Critical
In Botan's TLS 1.3 implementation before version 3.11.1, ApplicationData records can be processed before the Finished message is received. This allows a client to bypass certificate-based authentication.
- CVE-2015-7826Critical
Botan versions 1.11.x before 1.11.22 improperly handle wildcard matching against hostnames, which might allow remote attackers to have unspecified impact via a valid X.509 certificate.
Original NVD description (English source)
botan 1.11.x before 1.11.22 makes it easier for remote attackers to decrypt TLS ciphertext data via a padding-oracle attack against TLS CBC ciphersuites.