wolfSSL 4.0.0 has a Buffer Overflow in DoPreSharedKeys in tls13.c when a current identity size is greater than a client identity size. An attacker sends a crafted hello client packet over the network to a TLSv1.3 wolfSSL server. The length fields of the packet: record length, client hello length, total extensions length, PSK extension length, total identity length, and identity length contain their maximum value which is 2^16. The identity data field of the PSK extension of the packet contains the attack data, to be stored in the undefined memory (RAM) of the server. The size of the data is about 65 kB. Possibly the attacker can perform a remote code execution attack.
References
Link | Resource |
---|---|
http://www.securityfocus.com/bid/108466 | Broken Link |
https://www.telekom.com/en/corporate-responsibility/data-protection-data-security/security/details/advisories-504842 | Third Party Advisory |
https://www.telekom.com/resource/blob/572524/1c89c1cbaccdf792153063b3a10af10e/dl-190515-remote-buffer-overflow-vulnerability-wolfssl-library-data.pdf | Patch Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2019-05-23T12:54:46
Updated: 2019-05-27T10:06:00
Reserved: 2019-05-10T00:00:00
Link: CVE-2019-11873
JSON object: View
NVD Information
Status : Analyzed
Published: 2019-05-23T13:29:07.567
Modified: 2022-04-22T20:11:03.943
Link: CVE-2019-11873
JSON object: View
Redhat Information
No data.
CWE