title: Timing attack against DSA
description: The OpenSSL DSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could use variations in the signing algorithm to recover the private key. Fixed in OpenSSL 1.1.1a (Affected 1.1.1). Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i). Fixed in OpenSSL 1.0.2q (Affected 1.0.2-1.0.2p).
problem types: Constant time issue
affected:
{
product: OpenSSL
vendor: OpenSSL
versions:
status: affected, version: Fixed in OpenSSL 1.1.1a (Affected 1.1.1)
status: affected, version: Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i)
status: affected, version: Fixed in OpenSSL 1.0.2q (Affected 1.0.2-1.0.2p)
}
metrics:
other: [
content: {'lang': 'eng', 'url': 'https://www.openssl.org/policies/secpolicy.html#Low', 'value': 'Low'}
type: unknown
]