CVE-2017-9526

Priority
Description
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.
Notes
 tyhicks> EdDSA support was added in 1.6.0
Assigned-to
mdeslaur
Package
Upstream:not-affected
Ubuntu 12.04 ESM (Precise Pangolin):not-affected
Ubuntu 14.04 LTS (Trusty Tahr):not-affected (1.5.3-2ubuntu4.4)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 18.10 (Cosmic Cuttlefish):DNE
Ubuntu 19.04 (Disco Dingo):DNE
More Information

Updated: 2018-10-31 20:30:39 UTC (commit cfa7cf69d76449ccff972ac22f40976a08d908c2)