cve-2019-18840
Vulnerability from cvelistv5
Published
2019-11-09 12:58
Modified
2024-08-05 02:02
Severity ?
7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
In wolfSSL 4.1.0 through 4.2.0c, there are missing sanity checks of memory accesses in parsing ASN.1 certificate data while handshaking. Specifically, there is a one-byte heap-based buffer overflow inside the DecodedCert structure in GetName in wolfcrypt/src/asn.c because the domain name location index is mishandled. Because a pointer is overwritten, there is an invalid free.
References
cve@mitre.orghttps://github.com/wolfSSL/wolfssl/issues/2555Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/wolfSSL/wolfssl/issues/2555Exploit, Third Party Advisory
Impacted products
Vendor Product Version
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