Medium severity · published Feb 24, 2022
CVE-2022-25638
In wolfSSL before 5.2.0, certificate validation may be bypassed during attempted authentication by a TLS 1.3 client to a TLS 1.3 server
6.5
CVSS
0.6%
EPSS
No
On KEV
Description
In wolfSSL before 5.2.0, certificate validation may be bypassed during attempted authentication by a TLS 1.3 client to a TLS 1.3 server. This occurs when the sig_algo field differs between the certificate_verify message and the certificate message.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WO
Wolfssl · Wolfssl
before 5.2.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-25638
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-25638
Patch
https://github.com/wolfSSL/wolfssl/pull/4813
Vendor Advisory
https://www.wolfssl.com/docs/security-vulnerabilities/
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