CVE-2021-24115 : In Botan before 2.17.3, constant-time computations are not used for certain deco

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

Published 2021-02-22 02:15:14

Updated 2021-02-26 12:38:31

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2021-24115

Botan Project » Botan
Versions before (<) 2.17.3
cpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.71%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 70 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	10.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

https://github.com/randombit/botan/pull/2549

Backport of #2543 to release-2 by randombit · Pull Request #2549 · randombit/botan · GitHub
Patch;Third Party Advisory
https://botan.randombit.net/news.html

Release Notes — Botan
Release Notes;Vendor Advisory

CVEs referencing this url
https://github.com/randombit/botan/compare/2.17.2...2.17.3

Comparing 2.17.2...2.17.3 · randombit/botan · GitHub
Patch;Third Party Advisory

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