Gnupg : Security Vulnerabilities, CVEs, Published In 2017 (Information Leak)
In Libgcrypt before 1.7.7, an attacker who learns the EdDSA session key (from side-channel observation during the signing process) can easily recover the long-term secret key. 1.7.7 makes a cipher/ecc-eddsa.c change to store this session key in secure memory, to ensure that constant-time point operations are used in the MPI library.
Max CVSS
5.9
EPSS Score
0.40%
Published
2017-06-11
Updated
2019-01-16
Libgcrypt before 1.8.1 does not properly consider Curve25519 side-channel attacks, which makes it easier for attackers to discover a secret key, related to cipher/ecc.c and mpi/ec.c.
Max CVSS
7.5
EPSS Score
0.43%
Published
2017-08-29
Updated
2019-01-16
2 vulnerabilities found