CVE-2016-2849

7.5 HIGH

Published: May 13, 2016 Modified: May 06, 2026

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://botan.randombit.net/security.html

Source: cve@mitre.org

Vendor Advisory

http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183669.html

Source: cve@mitre.org

http://marc.info/?l=botan-devel&m=146185420505943&w=2

Source: cve@mitre.org

Vendor Advisory

http://www.debian.org/security/2016/dsa-3565

Source: cve@mitre.org

https://security.gentoo.org/glsa/201701-23

Source: cve@mitre.org

http://botan.randombit.net/security.html