CVE-2022-38152 — An issue was discovered in wolfSSL before 5
An issue was discovered in wolfSSL before 5.5.0. When a TLS 1.3 client connects to a wolfSSL server and SSL_clear is called on its session, the server crashes with a segmentation fault. This occurs in the second session, which is created through TLS session resumption and reuses
Published
2022-08-31T00:00:00.000Z
Last modified
2024-08-03T10:45:52.801Z
01What is this vulnerability?
An issue was discovered in wolfSSL before 5.5.0. When a TLS 1.3 client connects to a wolfSSL server and SSL_clear is called on its session, the server crashes with a segmentation fault. This occurs in the second session, which is created through TLS session resumption and reuses the initial struct WOLFSSL. If the server reuses the previous session structure (struct WOLFSSL) by calling…
02Affected products
| Vendor | Product | Versions |
|---|
| n | a / n/a | n/a |
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2022-08-31T00:00:00.000Z
- Last modified: 2024-08-03T10:45:52.801Z
09References
- github.com — https://github.com/wolfSSL/wolfssl/releases
- www.wolfssl.com — https://www.wolfssl.com/docs/security-vulnerabilities/
- github.com — https://github.com/wolfSSL/wolfssl/pull/5468
- github.com — https://github.com/tlspuffin/tlspuffin
- seclists.org — http://seclists.org/fulldisclosure/2023/Jan/7
- packetstormsecurity.com — http://packetstormsecurity.com/files/170604/wolfSSL-Session-Resumption-Denial-Of…
- blog.trailofbits.com — https://blog.trailofbits.com/2023/01/12/wolfssl-vulnerabilities-tlspuffin-fuzzin…
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