Published: 24/09/2019 Updated: 24/09/2019

CVSS v2 Base Score: 7.5 | Impact Score: 6.4 | Exploitability Score: 10

CVSS v3 Base Score: 9.8 | Impact Score: 5.9 | Exploitability Score: 3.9

VMScore: 668

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

In wolfSSL up to and including 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.

Vulnerable Product	Search on Vulmon	Subscribe to Product
wolfssl wolfssl

*** Description *** The wolfSSL embedded SSL library (formerly CyaSSL) is a lightweight SSL/TLS library written in ANSI C and targeted for embedded, RTOS, and resource-constrained environments - primarily because of its small size, speed, and feature set It is commonly used in standard operating environments as well because of its royalty-free pricing and excellent cross plat

Code based on https://github.com/wolfSSL/wolfssl/releases/tag/v4.2.0-stable

*** Description *** The wolfSSL embedded SSL library (formerly CyaSSL) is a lightweight SSL/TLS library written in ANSI C and targeted for embedded, RTOS, and resource-constrained environments - primarily because of its small size, speed, and feature set It is commonly used in standard operating environments as well because of its royalty-free pricing and excellent cross plat

CWE-125 https://github.com/wolfSSL/wolfssl/issues/2459 https://nvd.nist.gov https://github.com/neppe/wolfssl https://github.com/TheNetAdmin/NVLeak-wolfSSL

CVE-2019-16748

Vulnerability Summary

Vulnerability Trend

Github Repositories

References

Vulmon Search

About

Products

Connect