Information disclosure in Botan_project Botan
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
EPSS: 0.006 (69.4th percentile) — read the EPSS interpretation.
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.
Affected products
- Botan_project Botan — versions 1.10.12, 1.11.0, 1.11.1
- Debian Debian_linux — versions 8.0
- Fedoraproject Fedora — versions 24
- N/a — versions n/a
Weakness classification (CWE)
References
- FEDORA-2016-a545f81683 (x_refsource_FEDORA, vendor-advisory)
- DSA-3565 (vendor-advisory, x_refsource_DEBIAN)
- [botan-devel] 20160428 Botan 1.10.13 released (Vendor Advisory, mailing-list, x_refsource_MLIST)
- GLSA-201701-23 (vendor-advisory, x_refsource_GENTOO)
- cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2016-2849?
- CVE-2016-2849 is a high-severity vulnerability in Botan_project Botan, 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.