SB2022010506 - Multiple vulnerabilities in Mitsubishi Electric FA Engineering Software

Description

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds read (CVE-ID: CVE-2021-20606)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

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

The vulnerability exists due to a boundary condition. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and cause a denial of service condition on the system.

2) Integer underflow (CVE-ID: CVE-2021-20607)

CWE-ID: CWE-191 - Integer underflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

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

The vulnerability exists due to integer underflow. A remote attacker can trick a victim to open a specially crafted file, trigger integer underflow and cause a denial of service condition on the target system.

Remediation

Install update from vendor's website.

References

• https://jvn.jp/vu/JVNVU93817405/index.html
• https://us-cert.cisa.gov/ics/advisories/icsa-21-350-05
• https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-021_en.pdf