CVE-2019-16748

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.86% Top 30%
Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/wolfSSL/wolfssl/issues/2459 third party advisory

Frequently Asked Questions

What is the severity of CVE-2019-16748?
CVE-2019-16748 has been scored as a critical severity vulnerability.
How to fix CVE-2019-16748?
To fix CVE-2019-16748, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-16748 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-16748 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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