Bc Java

Pre-authentication resource exhaustion in Bouncy Castle BC-JAVA PGP modules (bcpg) allows remote attackers to trigger denial-of-service by exploiting unbounded AEAD chunk sizes, affecting all versions before 1.84. The maximum CVSS 4.0 score of 10.0 reflects complete compromise potential across confidentiality, integrity, and availability with no attack complexity, no authentication requirements, and network-based exploitation. No public exploit identified at time of analysis, though the attack s

Signature verification bypass in Bouncy Castle BC-JAVA (bcpkix module versions 1.49-1.83) allows remote unauthenticated attackers to forge cryptographic signatures by submitting empty signature sequences that are incorrectly accepted as valid by the draft CompositeVerifier implementation. This critical flaw (CVSS 4.0: 10.0) enables complete subversion of digital signature trust chains, potentially allowing authentication bypass, code signing forgery, and man-in-the-middle attacks against Java ap

Non-constant time comparison operations in the Legion of the Bouncy Castle BC-JAVA cryptographic library (core modules, versions 2.17.3 through 1.83) expose FrodoKEM private keys to timing side-channel attacks, enabling remote unauthenticated attackers to extract cryptographic secrets through statistical analysis of operation timing variations. CVSS 4.0 score of 10.0 reflects maximum confidentiality and integrity impact across system and subsequent contexts. EPSS probability is low (0.04%, 14th percentile) and no active exploitation is confirmed, but SSVC framework rates this as automatable with total technical impact. Vendor patch available in BC-JAVA 1.84.

LDAP injection in Bouncy Castle BC-JAVA bcprov module (versions 1.49 through 1.83) allows remote unauthenticated attackers to manipulate LDAP queries via specially crafted input to LDAPStoreHelper.java, enabling complete compromise of confidentiality, integrity, and availability across security boundaries. This critical vulnerability (CVSS 10.0) affects a widely deployed cryptographic library used throughout the Java ecosystem. No active exploitation confirmed (not in CISA KEV), but the attack r

GOST CTR block cipher in Bouncy Castle BC-JAVA processes only the first 255 blocks correctly, causing silent data corruption in encryption/decryption operations for longer messages. Affects BC-JAVA versions 1.59 through 1.83, with fix available in version 1.84. Local attack vector (CVSS AV:L) with critical CVSS 9.4 score reflects potential for both confidentiality and integrity compromise when applications process GOST-encrypted data streams exceeding 255 blocks (~4KB). No KEV listing or public

Bouncy Castle For Java before 1.74 is affected by an LDAP injection vulnerability. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

An issue was discovered in Legion of the Bouncy Castle BC Java 1.65 and 1.66. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. Public exploit code available.

The ASN.1 parser in Bouncy Castle Crypto (aka BC Java) 1.63 can trigger a large attempted memory allocation, and resultant OutOfMemoryError error, via crafted ASN.1 data. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Allocation of Resources Without Limits vulnerability could allow attackers to exhaust system resources through uncontrolled allocation.

Legion of the Bouncy Castle Legion of the Bouncy Castle Java Cryptography APIs 1.58 up to but not including 1.60 contains a CWE-470: Use of Externally-Controlled Input to Select Classes or Code. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Bouncy Castle BC 1.54 - 1.59, BC-FJA 1.0.0, BC-FJA 1.0.1 and earlier have a flaw in the Low-level interface to RSA key pair generator, specifically RSA Key Pairs generated in low-level API with added. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

The default BKS keystore use an HMAC that is only 16 bits long, which can allow an attacker to compromise the integrity of a BKS keystore. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.

BouncyCastle TLS prior to version 1.0.3, when configured to use the JCE (Java Cryptography Extension) for cryptographic functions, provides a weak Bleichenbacher oracle when any TLS cipher suite. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 66.2%.

The AES-GCM specification in RFC 5084, as used in Android 5.x and 6.x, recommends 12 octets for the aes-ICVlen parameter field, which might make it easier for attackers to defeat a cryptographic. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

The TLS implementation in the Bouncy Castle Java library before 1.48 and C# library before 1.8 does not properly consider timing side-channel attacks on a noncompliant MAC check operation during the. Rated medium severity (CVSS 4.0), this vulnerability is remotely exploitable.