CVE-2019-11873
Vulnerability from cvelistv5
Published
2019-05-23 12:54
Modified
2024-08-04 23:03
Severity ?
Summary
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
cve@mitre.orghttp://www.securityfocus.com/bid/108466Broken Link
cve@mitre.orghttps://www.telekom.com/en/corporate-responsibility/data-protection-data-security/security/details/advisories-504842Third Party Advisory
cve@mitre.orghttps://www.telekom.com/resource/blob/572524/1c89c1cbaccdf792153063b3a10af10e/dl-190515-remote-buffer-overflow-vulnerability-wolfssl-library-data.pdfPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/108466Broken Link
af854a3a-2127-422b-91ae-364da2661108https://www.telekom.com/en/corporate-responsibility/data-protection-data-security/security/details/advisories-504842Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.telekom.com/resource/blob/572524/1c89c1cbaccdf792153063b3a10af10e/dl-190515-remote-buffer-overflow-vulnerability-wolfssl-library-data.pdfPatch, Third Party Advisory
Impacted products
Vendor Product Version
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