wolfssl: In wolfSSL before 5.5.1, malicious clients can cause a buffer overflow during a TLS 1.3 handshake
CVE-2022-39173 is fixed in wolfssl on 1 platform, first by DEBIAN-CVE-2022-39173, released September 29, 2022. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| wolfssl · Debian 12.15 (bookworm) | 5.5.3-1 | DEBIAN-CVE-2022-39173 | Sep 29, 2022 |
| wolfssl · Debian 13.5 (trixie) | 5.5.3-1 | DEBIAN-CVE-2022-39173 | Sep 29, 2022 |
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