CVE-2022-39173
Last modified
CVE-2022-39173 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 4.26% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Wolfssl | Wolfssl | < 5.5.1 |
References
- http://packetstormsecurity.com/files/169600/wolfSSL-Buffer-Overflow.htmlExploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2022/Oct/24Mailing List, Third Party Advisory
- https://github.com/wolfSSL/wolfssl/releasesRelease Notes, Third Party Advisory
- https://www.wolfssl.com/docs/security-vulnerabilities/Vendor Advisory
- http://packetstormsecurity.com/files/169600/wolfSSL-Buffer-Overflow.htmlExploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2022/Oct/24Mailing List, Third Party Advisory
- https://github.com/wolfSSL/wolfssl/releasesRelease Notes, Third Party Advisory
- https://www.wolfssl.com/docs/security-vulnerabilities/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2022-39173?
How severe is CVE-2022-39173?
How do I fix CVE-2022-39173?
Are you affected by CVE-2022-39173?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST