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CVE-2019-14431

CRITICAL
9.8
CVSS Score
Published: July 29, 2019 at 09:21 PM UTC
Updated: June 17, 2026 at 02:18 AM UTC
1 product affected across 1 vendorMatrixssl

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Severity
CRITICAL9.8
Exploit prediction
EPSS 4%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Matrixssl· Matrixssl
95%
3.8.2 ≤ v ≤ 4.2.1

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCExploitIssue TrackingThird Party Advisory
Source: [email protected]
https://github.com/matrixssl/matrixssl/issues/30

CVSS

9.8CRITICAL[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-755CWE-787

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