Critical severity · published Nov 6, 2022
CVE-2022-42905
In wolfSSL before 5.5.2, if callback functions are enabled (via the WOLFSSL_CALLBACKS flag), then a malicious TLS 1.3 client or network attacker can trigger a buffer over-read on…
9.1
CVSS
2.1%
EPSS
No
On KEV
Description
In wolfSSL before 5.5.2, if callback functions are enabled (via the WOLFSSL_CALLBACKS flag), then a malicious TLS 1.3 client or network attacker can trigger a buffer over-read on the heap of 5 bytes. (WOLFSSL_CALLBACKS is only intended for debugging.)
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.1% · higher than 81% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WO
Wolfssl · Wolfssl
before 5.5.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-42905
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-42905
Third Party Advisory
http://packetstormsecurity.com/files/170610/wolfSSL-WOLFSSL_CALLBACKS-Heap-Buffer-Over-Read.html
Mailing List
http://seclists.org/fulldisclosure/2023/Jan/11
blog.trailofbits.com
https://blog.trailofbits.com/2023/01/12/wolfssl-vulnerabilities-tlspuffin-fuzzing-ssh/
Release Notes
https://github.com/wolfSSL/wolfssl/releases
Release Notes
https://github.com/wolfSSL/wolfssl/releases/tag/v5.5.2-stable
Vendor Advisory
https://www.wolfssl.com/docs/security-vulnerabilities/
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