Input validation error in VxWorks - CVE-2019-12262

 

Input validation error in VxWorks - CVE-2019-12262

Published: July 31, 2019


Vulnerability identifier: #VU19587
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-12262
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability: No public exploit available
Vendor: Wind River Systems, Inc.
Affected software:
VxWorks

Detailed vulnerability description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input when processing unsolicited Reverse ARP replies. A remote attacker can send specially crafted traffic and perform denial of service (DoS) attack.


How to mitigate CVE-2019-12262

Install updates from vendor's website.

The vulnerability is fixed in:
VxWorks 6.9: update to version  6.9.4.12
VxWorks 7: update to versions 2.1.0.0 or 1.4.3.1.

Sources