In wolfSSL through 4.1.0, there is a missing sanity check of memory accesses in parsing ASN.1 certificate data while handshaking. Specifically, there is a one-byte heap-based buffer over-read in CheckCertSignature_ex in wolfcrypt/src/asn.c.
{ "versions": [ { "introduced": "0" }, { "last_affected": "4.1.0" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-16748.json"