Information disclosure in Botan Project
CVE-2016-2849
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.028 (86.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.028 · change: +0.006
Affected products
- Botan Project — versions 1.10.12, 1.11.0, 1.11.1
- Debian Linux — versions 8.0
- Fedoraproject Fedora — versions 24
Weakness classification (CWE)
References
- lists.fedoraproject.org/pipermail/package-announce/2016-May/183669.html (vendor-advisory)
- www.debian.org/security/2016/dsa-3565 (vendor-advisory)
- marc.info/ (Vendor Advisory, mailing-list)
- security.gentoo.org/glsa/201701-23 (vendor-advisory)
- botan.randombit.net/security.html (Vendor Advisory)
Frequently asked questions
- What is CVE-2016-2849?
- CVE-2016-2849 is a high-severity vulnerability in Botan Project, classified under Information Disclosure. CVSS score: 7.5/10. Published 2016-05-13.
- How severe is CVE-2016-2849?
- High severity. CVSS v3 base score is 7.5 out of 10.