CVE Vulnerability

CVE-2019-16748

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.

7.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

9.8 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/wolfSSL/wolfssl/issues/2459 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*
Information

Published : 2019-09-24 01:15

Updated : 2019-09-24 02:50

NVD link : CVE-2019-16748

Mitre link : CVE-2019-16748

Products Affected
No products.
CWE
CWE-125

Out-of-bounds Read