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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,…
High7.5EPSS 2.8%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 2.8% · top 13% of all CVEs (2 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
n/a
- affected n/a
References (5)
- FEDORA-2016-a545f81683 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- DSA-3565 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- [botan-devel] 20160428 Botan 1.10.13 released (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- GLSA-201701-23 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- http://botan.randombit.net/security.html (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .