Home/CVE/In Botan before 2.17.3, constant-time computations are not used for certain decoding and encoding operations (base32, ba
CVE

CVE-2021-24115

In Botan before 2.17.3, constant-time computations are not used for certain decoding and encoding operations (base32, ba

In Botan before 2.17.3, constant-time computations are not used for certain decoding and encoding operations (base32, base58, base64, and hex).

CRITICAL · CVSS 9.8 EPSS 0.00711
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
▤

Affected Products & Versions

1
botan project botan< 2.17.3
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD22 Feb 2021 · 02:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

2
suse-csafopenSUSE-SU-2021:0794-1
suse-csafopenSUSE-SU-2021:0765-1
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://botan.randombit.net/news.htmlRelease NotesVendor Advisory
https://github.com/randombit/botan/compare/2.17.2...2.17.3PatchThird Party Advisory
https://github.com/randombit/botan/pull/2549PatchThird Party Advisory
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