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.
Published
2019-09-24T13:15:10.660
Last Modified
2024-11-21T04:31:06.797
Status
Modified
Source
[email protected]
Severity
CVSSv3.1: 9.8 (CRITICAL)
CVSSv2 Vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
- Access Vector: NETWORK
- Access Complexity: LOW
- Authentication: NONE
- Confidentiality Impact: PARTIAL
- Integrity Impact: PARTIAL
- Availability Impact: PARTIAL
Exploitability Score
10.0
Impact Score
6.4
Weaknesses
Affected Vendors & Products
| Type |
Vendor |
Product |
Version/Range |
Vulnerable? |
| Application |
wolfssl
|
wolfssl
|
≤ 4.1.0 |
Yes
|
References