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TI-2016-02390 Aliases CVE-2016-2849GHSA-pfgh-27pp-8vx8

Botan before 1.10.13 and 1.11.x before 1.11.29 do not use a constant-time algorithm to…

Priority LOW 38CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-200.

Summary

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.

Why it matters now

EPSS 0.02464 84th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 32

CPEVersionsRoleVendor
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:*24VulnerableFedoraproject
cpe:2.3:a:botan_project:botan:1.10.12:*:*:*:*:*:*:*1.10.12Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.0:*:*:*:*:*:*:*1.11.0Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.1:*:*:*:*:*:*:*1.11.1Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.2:*:*:*:*:*:*:*1.11.2Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.3:*:*:*:*:*:*:*1.11.3Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.4:*:*:*:*:*:*:*1.11.4Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.5:*:*:*:*:*:*:*1.11.5Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.6:*:*:*:*:*:*:*1.11.6Vulnerablerandombit
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:* Versions 24 Vulnerable ·Fedoraproject
  • cpe:2.3:a:botan_project:botan:1.10.12:*:*:*:*:*:*:* Versions 1.10.12 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.0:*:*:*:*:*:*:* Versions 1.11.0 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.1:*:*:*:*:*:*:* Versions 1.11.1 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.2:*:*:*:*:*:*:* Versions 1.11.2 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.3:*:*:*:*:*:*:* Versions 1.11.3 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.4:*:*:*:*:*:*:* Versions 1.11.4 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.5:*:*:*:*:*:*:* Versions 1.11.5 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.6:*:*:*:*:*:*:* Versions 1.11.6 Vulnerable ·randombit
Show 22 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:botan_project:botan:1.11.7:*:*:*:*:*:*:*1.11.7Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.8:*:*:*:*:*:*:*1.11.8Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.9:*:*:*:*:*:*:*1.11.9Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.10:*:*:*:*:*:*:*1.11.10Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.11:*:*:*:*:*:*:*1.11.11Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.12:*:*:*:*:*:*:*1.11.12Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.13:*:*:*:*:*:*:*1.11.13Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.14:*:*:*:*:*:*:*1.11.14Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.15:*:*:*:*:*:*:*1.11.15Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.16:*:*:*:*:*:*:*1.11.16Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.17:*:*:*:*:*:*:*1.11.17Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.18:*:*:*:*:*:*:*1.11.18Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.19:*:*:*:*:*:*:*1.11.19Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.20:*:*:*:*:*:*:*1.11.20Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.21:*:*:*:*:*:*:*1.11.21Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.22:*:*:*:*:*:*:*1.11.22Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.23:*:*:*:*:*:*:*1.11.23Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.24:*:*:*:*:*:*:*1.11.24Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.25:*:*:*:*:*:*:*1.11.25Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.26:*:*:*:*:*:*:*1.11.26Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.27:*:*:*:*:*:*:*1.11.27Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.28:*:*:*:*:*:*:*1.11.28Vulnerablerandombit
  • cpe:2.3:a:botan_project:botan:1.11.7:*:*:*:*:*:*:* Versions 1.11.7 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.8:*:*:*:*:*:*:* Versions 1.11.8 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.9:*:*:*:*:*:*:* Versions 1.11.9 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.10:*:*:*:*:*:*:* Versions 1.11.10 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.11:*:*:*:*:*:*:* Versions 1.11.11 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.12:*:*:*:*:*:*:* Versions 1.11.12 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.13:*:*:*:*:*:*:* Versions 1.11.13 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.14:*:*:*:*:*:*:* Versions 1.11.14 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.15:*:*:*:*:*:*:* Versions 1.11.15 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.16:*:*:*:*:*:*:* Versions 1.11.16 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.17:*:*:*:*:*:*:* Versions 1.11.17 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.18:*:*:*:*:*:*:* Versions 1.11.18 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.19:*:*:*:*:*:*:* Versions 1.11.19 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.20:*:*:*:*:*:*:* Versions 1.11.20 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.21:*:*:*:*:*:*:* Versions 1.11.21 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.22:*:*:*:*:*:*:* Versions 1.11.22 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.23:*:*:*:*:*:*:* Versions 1.11.23 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.24:*:*:*:*:*:*:* Versions 1.11.24 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.25:*:*:*:*:*:*:* Versions 1.11.25 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.26:*:*:*:*:*:*:* Versions 1.11.26 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.27:*:*:*:*:*:*:* Versions 1.11.27 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.28:*:*:*:*:*:*:* Versions 1.11.28 Vulnerable ·randombit

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-2849
  2. 2026-10-03 Alias added: GHSA-pfgh-27pp-8vx8

References

Advisory 5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences