Expected behavior violation in VxWorks - CVE-2019-12264

Vulnerability identifier: #VU19585

CSH Severity: Low

CVSS v4: 5.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-12264

CWE-ID: CWE-440

Exploitation vector: Adjecent network

Exploit availability: No public exploit available

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

The vulnerability exists due to a logical flaw within the ipdhcpc DHCP client when processing broadcasted IP addresses. A remote attacker with control over DHCP server within the local network segment can assign multicast or broadcast addresses to the victim.

VxWorks
HG5G-V
HG4G-V
HG1P
HG3G-V
HG2G-V
HG1G
HG4G
HG3G
HG2G-5T
HG2G-5F

HG5G-V - update to 4.86
HG4G-V - update to 4.86
HG1P - update to 4.86
HG3G-V - update to 4.86
HG2G-V - update to 4.86
HG1G - update to 4.86
HG4G - update to 4.86
HG3G - update to 4.86
HG2G-5T - update to 4.86
HG2G-5F - update to 4.86

• https://ics-cert.us-cert.gov/advisories/icsa-19-211-01
• https://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2019-12264

• Multiple vulnerabilities in Wind River VxWorks
• Multiple vulnerabilities in IDEC Operator Interfaces products