CVE-2022-38153 — An issue was discovered in wolfSSL before 5
An issue was discovered in wolfSSL before 5.5.0 (when --enable-session-ticket is used); however, only version 5.3.0 is exploitable. Man-in-the-middle attackers or a malicious server can crash TLS 1.2 clients during a handshake. If an attacker injects a large ticket (more than 256
Published
2022-08-31T00:00:00.000Z
Last modified
2024-08-03T10:45:52.834Z
01What is this vulnerability?
An issue was discovered in wolfSSL before 5.5.0 (when --enable-session-ticket is used); however, only version 5.3.0 is exploitable. Man-in-the-middle attackers or a malicious server can crash TLS 1.2 clients during a handshake. If an attacker injects a large ticket (more than 256 bytes) into a NewSessionTicket message in a TLS 1.2 handshake, and the client has a non-empty session cache, the…
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: 2024-08-03T10:45:52.834Z
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/5476
- github.com — https://github.com/trailofbits/tlspuffin
- seclists.org — http://seclists.org/fulldisclosure/2023/Jan/8
- packetstormsecurity.com — http://packetstormsecurity.com/files/170605/wolfSSL-5.3.0-Denial-Of-Service.html
- blog.trailofbits.com — https://blog.trailofbits.com/2023/01/12/wolfssl-vulnerabilities-tlspuffin-fuzzin…
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