Medium severity · published Jul 14, 2021
CVE-2021-24116
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…
4.9
CVSS
1.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 68% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WO
Wolfssl · Wolfssl
before 4.6.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-24116
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-24116
Release Notes
https://github.com/UzL-ITS/util-lookup/blob/main/cve-vulnerability-publication.md
Release Notes
https://github.com/wolfSSL/wolfssl/releases
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