Heap-Based Buffer Over-read in DecodeCertExtensions in wolfSSL 4.1.0

CVE-2019-15651 · HIGH Severity

AV:N/AC:L/AU:N/C:P/I:P/A:P

wolfSSL 4.1.0 has a one-byte heap-based buffer over-read in DecodeCertExtensions in wolfcrypt/src/asn.c because reading the ASN_BOOLEAN byte is mishandled for a crafted DER certificate in GetLength_ex.

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