SB2019013007 - Denial of service in Mitsubishi Electric MELSEC-Q Series PLCs
Published: January 30, 2019
Security Bulletin ID
SB2019013007
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Resource exhaustion (CVE-ID: CVE-2019-6535)
CWE-ID: CWE-400 - Resource exhaustion
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to resource exhaustion when handling malicious input. A remote attacker can send specific bytes over Port 5007, consume excessive resources and cause Ethernet stack crash.
Remediation
Install update from vendor's website.