CVE-2022-42905

CriticalCVSS 9.1/10Last modified Jun 17, 2026

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.)

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Weakness enumeration

CWE-125

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://packetstormsecurity.com/files/170610/wolfSSL-WOLFSSL_CALLBACKS-Heap-Buffer-Over-Read.htmlThird Party Advisory
http://seclists.org/fulldisclosure/2023/Jan/11Mailing List, Third Party Advisory
https://blog.trailofbits.com/2023/01/12/wolfssl-vulnerabilities-tlspuffin-fuzzing-ssh/
https://github.com/wolfSSL/wolfssl/releasesRelease Notes, Third Party Advisory
https://github.com/wolfSSL/wolfssl/releases/tag/v5.5.2-stableRelease Notes, Third Party Advisory
https://www.wolfssl.com/docs/security-vulnerabilities/Vendor Advisory
http://packetstormsecurity.com/files/170610/wolfSSL-WOLFSSL_CALLBACKS-Heap-Buffer-Over-Read.htmlThird Party Advisory
http://seclists.org/fulldisclosure/2023/Jan/11Mailing List, Third Party Advisory
https://blog.trailofbits.com/2023/01/12/wolfssl-vulnerabilities-tlspuffin-fuzzing-ssh/
https://github.com/wolfSSL/wolfssl/releasesRelease Notes, Third Party Advisory
https://github.com/wolfSSL/wolfssl/releases/tag/v5.5.2-stableRelease Notes, Third Party Advisory
https://www.wolfssl.com/docs/security-vulnerabilities/Vendor Advisory

Timeline

Published: Nov 7, 2022
Last modified: Jun 17, 2026
NVD status: Modified

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