CVE-2021-24115

Description

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

9.8

CVSS

Severity: Critical

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.71% Top 30%

Vendor Advisory randombit.net

Affected: n/a n/a

References

Link	Tags
https://github.com/randombit/botan/compare/2.17.2...2.17.3	third party advisory patch
https://github.com/randombit/botan/pull/2549	third party advisory patch
https://botan.randombit.net/news.html	release notes vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-24115?: CVE-2021-24115 has been scored as a critical severity vulnerability.
How to fix CVE-2021-24115?: To fix CVE-2021-24115, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-24115 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-24115 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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