7.5

CVE-2016-2849: botan_project botan

CVSS: 7.5v3.0HighModified
AliasesUBUNTU-CVE-2016-2849
Published 13-05-2016Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2016-2849 is a high (CVSS 7.5) vulnerability in botan_project botan. EPSS estimates a 2.81% chance of exploitation in the next 30 days, higher than 86.4% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
2.81%
0%100%
Low · +0.62 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5 · Related 2
DLA-449-1DSA-3565-1MGASA-2016-0208OPENSUSE-SU-2024:10477-1SUSE-SU-2017:1222-1

Timeline

  1. 13-05-2016
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

2.81%

Chance of exploitation in the next 30 days

Percentile

86%

Versus all other CVEs

30-day change

+0.62 pp

From 2.20% on 21-09-2026

21-09-202621-10-2026
EPSS score
2.81%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Botan_project1 product
  • botan1.10.12 | 1.11.0 | 1.11.1 | 1.11.2 | 1.11.3 | 1.11.4 | 1.11.5 | 1.11.6 | 1.11.7 | 1.11.8 | 1.11.9 | 1.11.10 | 1.11.11 | 1.11.12 | 1.11.13 | 1.11.14 | 1.11.15 | 1.11.16 | 1.11.17 | 1.11.18 | 1.11.19 | 1.11.20 | 1.11.21 | 1.11.22 | 1.11.23 | 1.11.24 | 1.11.25 | 1.11.26 | 1.11.27 | 1.11.28
Debian1 product
Fedoraproject1 product
Ubuntu1 product
  • botan1.10< 1.10.5-1+deb7u1ubuntu0.14.04.1 | All versions (No fix recorded)

4 vendors · 4 products

References

7 links