CVE-2019-14431

CRITICALCVSS 9.8/10EPSS 3.63%

Last modified

CVE-2019-14431 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In MatrixSSL 3.8.3 Open through 4.2.1 Open, the DTLS server mishandles incoming network messages leading to a heap-based buffer overflow of up to 256 bytes and possible Remote Code Execution in parseSSLHandshake in sslDecode.c. During processing of a crafted packet, the server mishandles the fragment length value provided in the DTLS message.. EPSS estimates a 3.63% chance of exploitation in the next 30 days.

Description

In MatrixSSL 3.8.3 Open through 4.2.1 Open, the DTLS server mishandles incoming network messages leading to a heap-based buffer overflow of up to 256 bytes and possible Remote Code Execution in parseSSLHandshake in sslDecode.c. During processing of a crafted packet, the server mishandles the fragment length value provided in the DTLS message.

Metrics

CVSS 3.1
9.8/10

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

EPSS Probability
3.63%

88.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
MatrixsslMatrixssl>= 3.8.2, <= 4.2.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-14431?
In MatrixSSL 3.8.3 Open through 4.2.1 Open, the DTLS server mishandles incoming network messages leading to a heap-based buffer overflow of up to 256 bytes and possible Remote Code Execution in parseSSLHandshake in sslDecode.c. During processing of a crafted packet, the server mishandles the fragment length value provided in the DTLS message.
How severe is CVE-2019-14431?
CVE-2019-14431 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.63% probability of exploitation in the next 30 days.
How do I fix CVE-2019-14431?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-14431?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST