CVE-2022-39173

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.

Weakness classification

• nvd@nist.gov: CWE-787
• 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-787

Primary references

• cve@mitre.org — Exploit, Third Party Advisory, VDB Entry
• cve@mitre.org — Mailing List, Third Party Advisory
• cve@mitre.org
• cve@mitre.org — Release Notes, Third Party Advisory
• cve@mitre.org — Vendor Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory, VDB Entry
• af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108
• af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory