GHSA-4hff-hh47-7788: Duplicate Advisory: curve25519-dalek has timing variability in `curve25519-dalek`'s `Scalar29::sub`/`Scalar52::sub`

July 27, 2025 (updated July 28, 2025)

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-x4gp-pqpj-f43q. This link is maintained to preserve external references.

Original Description

The curve25519-dalek crate before 4.1.3 for Rust has a constant-time operation on elliptic curve scalars that is removed by LLVM.

References

crates.io/crates/curve25519-dalek
github.com/advisories/GHSA-4hff-hh47-7788
github.com/dalek-cryptography/curve25519-dalek
github.com/dalek-cryptography/curve25519-dalek/pull/659
nvd.nist.gov/vuln/detail/CVE-2024-58262
rustsec.org/advisories/RUSTSEC-2024-0344.html

Code Behaviors & Features

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