CVE-2019-18840
Published: Nov 9, 2019
Modified: Aug 5, 2024
CVSS v3.0
7.5
Description
In wolfSSL 4.1.0 through 4.2.0c, there are missing sanity checks of memory accesses in parsing ASN.1 certificate data while handshaking. Specifically, there is a one-byte heap-based buffer overflow inside the DecodedCert structure in GetName in wolfcrypt/src/asn.c because the domain name location index is mishandled. Because a pointer is overwritten, there is an invalid free.
| Vendor | Product | Versions |
|---|---|---|
n/a | n/a | affected n/a |
CVSS v3.0 Details
CVSS v3.0 Vector
CVSS:3.0/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:N
Attack Complexity
Attack Vector
Availability
Confidentiality
Integrity
Privileges Required
Scope
User Interaction
References
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