CVE-2021-24116

Published: Jul 14, 2021Modified: Jun 17, 2026

4.9

Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Exploitability: 1.2 / Impact: 3.6

Source: NVD

Description

In wolfSSL through 4.6.0, a side-channel vulnerability in base64 PEM file decoding allows system-level (administrator) attackers to obtain information about secret RSA keys via a controlled-channel and side-channel attack on software running in isolated environments that can be single stepped, especially Intel SGX.

Affected (1)

Products: Wolfssl: Wolfssl

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Wolfssl Wolfssl	Before 4.6.0

Related CWEs

Observable Discrepancy

The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.

References (4)

https://github.com/UzL-ITS/util-lookup/blob/main/cve-vulnerability-publication.md

Source: cve@mitre.org

Release NotesThird Party Advisory

https://github.com/wolfSSL/wolfssl/releases

Source: cve@mitre.org

Release NotesThird Party Advisory

https://github.com/UzL-ITS/util-lookup/blob/main/cve-vulnerability-publication.md

Source: af854a3a-2127-422b-91ae-364da2661108

Release NotesThird Party Advisory

https://github.com/wolfSSL/wolfssl/releases

Source: af854a3a-2127-422b-91ae-364da2661108

Release NotesThird Party Advisory

Timeline

No history available yet.