CVE-2021-24115
9.8
CRITICAL
CVSS 3.1
EPSS 0.71%
Description
In Botan before 2.17.3, constant-time computations are not used for certain decoding and encoding operations (base32, base58, base64, and hex).
How to fix CVE-2021-24115
To remediate CVE-2021-24115, upgrade the affected package to a fixed version below.
- Alpine/botan—upgrade to 2.11.0-r4 or later
- Debian/botan—upgrade to 2.17.3+dfsg-1 or later
Is CVE-2021-24115 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2.11.0-r4
- from 0, < 2.17.3+dfsg-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |