AI Score
Confidence
High
EPSS
Percentile
79.2%
Botan before 1.10.13 and 1.11.x before 1.11.29 do not use a constant-time algorithm to perform a modular inverse on the signature nonce k, which might allow remote attackers to obtain ECDSA secret keys via a timing side-channel attack.
botan.randombit.net/security.html
lists.fedoraproject.org/pipermail/package-announce/2016-May/183669.html
marc.info/?l=botan-devel&m=146185420505943&w=2
www.debian.org/security/2016/dsa-3565
security.gentoo.org/glsa/201701-23