CVE-2024-33851
phpecc, as used in paragonie/phpecc before 2.0.1, has a branch-based timing leak in Point addition. (This is related to phpecc/phpecc on GitHub, and the Matyas Danter ECC library.)
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Vulnerabilidades de mdanter/ecc
Vulnerabilidades publicadas para mdanter/ecc en los últimos 30 días: 0. Incluidas en el catálogo KEV: 0.
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PHPECC vulnerable to multiple cryptographic side-channel attacks
### ECDSA Canonicalization PHPECC is vulnerable to malleable ECDSA signature attacks. ### Constant-Time Signer When generating a new ECDSA signature, the GMPMath adapter was used. This class wraps the GNU Multiple Precision arithmetic library (GMP), which does not aim to provide constant-time implementations of algorithms. An attacker capable of triggering many signatures and studying the time it takes to perform each operation would be able to leak the secret number, `k`, and thereby learn the private key. ### EcDH Timing Leaks When calculating a shared secret using the `EcDH` class, the scalar-point multiplication is based on the ari
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