CVE-2019-16748

Published: Sep 24, 2019Modified: Jun 17, 2026

9.8

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 3.9 / Impact: 5.9

Source: NVD

Description

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.

Affected (1)

Products: Wolfssl: Wolfssl

Wolfssl

1 product

Wolfssl

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Wolfssl Wolfssl	Up to 4.1.0

Related CWEs

CWE-125

Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

References (2)

https://github.com/wolfSSL/wolfssl/issues/2459

Source: cve@mitre.org

Third Party Advisory

https://github.com/wolfSSL/wolfssl/issues/2459

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

Timeline

No history available yet.