SB2021093007 - Multiple vulnerabilities in Corel WordPerfect

Description

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds read (CVE-ID: CVE-2021-38108)

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

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

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition. A remote attacker can use a specially crafted DOC file, trigger out-of-bounds read error and read contents of memory on the system.

2) Out-of-bounds write (CVE-ID: CVE-2021-38110)

CWE-ID: CWE-787 - Out-of-bounds write

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

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input. A remote attacker can use a specially crafted DOC file, trigger out-of-bounds write and execute arbitrary code on the target system.

Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References

• https://www.fortiguard.com/zeroday/FG-VD-21-037
• https://www.fortiguard.com/zeroday/FG-VD-21-036