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Critical 9.1
AEAD Forgeries with Empty Ciphertext When Using EVP_Cipher()
Issue summary: ChaCha20-Poly1305 and AES-OCB decryption with an empty ciphertext can report success without verifying the supplied authentication tag when the operation is finalized by calling the EVP_Cipher() function. Impact summary: Applications calling EV…
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Critical 9.8
Untrusted Sender DN Used as Format String in CMP Response Validation
Issue summary: OpenSSL CMP response validation passed an unexpected response sender distinguished name directly as the format string to `ERR_raise_data()`. Impact summary: A malicious or intercepted CMP endpoint can crash a CMP client that enforces an expecte…
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Critical 9.1
CMS AuthEnvelopedData Processing May Accept Forged Messages
Issue Summary: Cryptographic Message Services (CMS) processing fails to perform sufficient input validation on the cipher and tag length fields of AuthEnvelopedData containers, leading to various potential compromises. Impact Summary: Attackers making use of …
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Critical 9.8
Out-of-bounds read & write in RFC 3211 KEK Unwrap
Issue summary: An application trying to decrypt CMS messages encrypted using password based encryption can trigger an out-of-bounds read and write. Impact summary: This out-of-bounds read may trigger a crash which leads to Denial of Service for an application…
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Critical 9.8
Use After Free with SSL_free_buffers
Issue summary: Calling the OpenSSL API function SSL_free_buffers may cause memory to be accessed that was previously freed in some situations Impact summary: A use after free can have a range of potential consequences such as the corruption of valid data, cra…
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Critical 9.1CVE-2024-5535 Public exploit
SSL_select_next_proto buffer overread
Issue summary: Calling the OpenSSL API function SSL_select_next_proto with an empty supported client protocols buffer may cause a crash or memory contents to be sent to the peer. Impact summary: A buffer overread can have a range of potential consequences suc…
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Critical 9.8
SM2 Decryption Buffer Overflow
In order to decrypt SM2 encrypted data an application is expected to call the API function EVP_PKEY_decrypt(). Typically an application will call this function twice. The first time, on entry, the "out" parameter can be NULL and, on exit, the "outlen" paramet…