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 the heap of 5 bytes. (WOLFSSL_CALLBACKS is only intended for debugging.)

• CWE-125
• CWE-125

• 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

Published

Nov 7, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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