CVEvulnerability
CVE-2022-39173
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2022-09-29
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-787
Description
In wolfSSL before 5.5.1, malicious clients can cause a buffer overflow during a TLS 1.3 handshake. This occurs when an attacker supposedly resumes a previous TLS session. During the resumption Client Hello a Hello Retry Request must be triggered. Both Client Hellos are required to contain a list of duplicate cipher suites to trigger the buffer overflow. In total, two Client Hellos have to be sent: one in the resumed session, and a second one as a response to a Hello Retry Request message.
Affected configurations
• wolfssl wolfssl (< 5.5.1)
Related
Weakness · CWE (1)
- CWE-787 Out-of-bounds Write weakness
References
- http://packetstormsecurity.com/files/169600/wolfSSL-Buffer-Overflow.html Exploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2022/Oct/24 Mailing List, Third Party Advisory
- https://blog.trailofbits.com/2023/01/12/wolfssl-vulnerabilities-tlspuffin-fuzzing-ssh/ blog.trailofbits.com
- https://github.com/wolfSSL/wolfssl/releases Release Notes, Third Party Advisory
- https://www.wolfssl.com/docs/security-vulnerabilities/ Vendor Advisory
- http://packetstormsecurity.com/files/169600/wolfSSL-Buffer-Overflow.html Exploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2022/Oct/24 Mailing List, Third Party Advisory
- https://blog.trailofbits.com/2023/01/12/wolfssl-vulnerabilities-tlspuffin-fuzzing-ssh/ blog.trailofbits.com
- https://github.com/wolfSSL/wolfssl/releases Release Notes, Third Party Advisory
- https://www.wolfssl.com/docs/security-vulnerabilities/ Vendor Advisory