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CVE-2022-38153 Detail


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 session cache frees a pointer that points to unallocated memory, causing the client to crash with a "free(): invalid pointer" message. NOTE: It is likely that this is also exploitable during TLS 1.3 handshakes between a client and a malicious server. With TLS 1.3, it is not possible to exploit this as a man-in-the-middle.


CVSS 3.x Severity and Metrics:

Base Score:  5.9 MEDIUM
Vector:  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://packetstormsecurity.com/files/170605/wolfSSL-5.3.0-Denial-Of-Service.html Exploit  Third Party Advisory 
http://seclists.org/fulldisclosure/2023/Jan/8 Exploit  Mailing List  Third Party Advisory 
https://blog.trailofbits.com/2023/01/12/wolfssl-vulnerabilities-tlspuffin-fuzzing-ssh/ Third Party Advisory 
https://github.com/trailofbits/tlspuffin Not Applicable 
https://github.com/wolfSSL/wolfssl/pull/5476 Exploit  Patch  Third Party Advisory 
https://github.com/wolfSSL/wolfssl/releases Release Notes 
https://www.wolfssl.com/docs/security-vulnerabilities/ Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-770 Allocation of Resources Without Limits or Throttling cwe source acceptance level NIST  

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Change History

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Quick Info

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