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.
References
| Link | Resource |
|---|---|
| https://github.com/trailofbits/tlspuffin | Not Applicable |
| https://www.wolfssl.com/docs/security-vulnerabilities/ | Vendor Advisory |
| https://github.com/wolfSSL/wolfssl/releases | Release Notes |
| https://github.com/wolfSSL/wolfssl/pull/5476 | Exploit Patch Third Party Advisory |
| http://seclists.org/fulldisclosure/2023/Jan/8 | Exploit Mailing List Third Party Advisory |
| http://packetstormsecurity.com/files/170605/wolfSSL-5.3.0-Denial-Of-Service.html | Exploit Third Party Advisory |
| https://blog.trailofbits.com/2023/01/12/wolfssl-vulnerabilities-tlspuffin-fuzzing-ssh/ | Third Party Advisory |
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Configurations
Information
Published : 2022-08-31 11:15
Updated : 2023-03-01 07:51
NVD link : CVE-2022-38153
Mitre link : CVE-2022-38153
JSON object : View
CWE
CWE-770
Allocation of Resources Without Limits or Throttling
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Products Affected
wolfssl
- wolfssl