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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2017-06-11T02:00:00

Updated: 2024-08-05T17:11:02.257Z

Reserved: 2017-06-10T00:00:00

Link: CVE-2017-9526

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2017-06-11T02:29:00.183

Modified: 2023-11-07T02:50:47.410

Link: CVE-2017-9526

cve-icon Redhat

Severity : Low

Publid Date: 2017-06-01T00:00:00Z

Links: CVE-2017-9526 - Bugzilla