CVE-2019-25003

An issue was discovered in the libsecp256k1 crate before 0.3.1 for Rust. Scalar::check_overflow allows a timing side-channel attack; consequently, attackers can obtain sensitive information.

An issue was discovered in the libsecp256k1 crate before 0.3.1 for Rust. Scalar::check_overflow allows a timing side-channel attack; consequently, attackers can obtain sensitive information.

Versions of `libsecp256k1` prior to `0.3.1` did not execute Scalar::check_overflow in constant time. This allows an attacker to potentially leak information via a timing attack. The flaw was corrected by modifying Scalar::check_overflow to execute in constant time.

Versions of libsecp256k1 prior to 0.3.1 did not execute `Scalar::check_overflow` in constant time. This allows an attacker to potentially leak information via a timing attack. The flaw was corrected by modifying `Scalar::check_overflow` to execute in constant time.

Se detectó un problema en la crate libsecp256k1 versiones anteriores a 0.3.1 para Rust. La función Scalar::check_overflow permite un ataque de canal lateral de sincronización; en consecuencia, unos atacantes pueden conseguir información confidencial.