The dsa_sign_setup function in crypto/dsa/dsa_ossl.c in OpenSSL through 1.0.2h does not properly ensure the use of constant-time operations, which makes it easier for local users to discover a DSA private key via a timing side-channel attack.
Severity
Medium 5.5
Published
20 Jun 2016
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
0.10.47, 0.12.16, 4.6.0, 6.7.0
Sources
NVD
Affected software
Software
Affected versions
Node.jsServers and applications · cpe:a:nodejs:node.js
From 0.10.0 before 0.10.47
From 0.12.0 before 0.12.16
From 4.0.0 up to 4.1.2
From 4.2.0 before 4.6.0
From 5.0.0 before 6.7.0
OpenSSLServers and applications · cpe:a:openssl:openssl