Multiple vulnerabilities in Corel WordPerfect

Published: 2021-09-30

Risk	High
Patch available	NO
Number of vulnerabilities	2
CVE-ID	CVE-2021-38108 CVE-2021-38110
CWE-ID	CWE-125 CWE-787
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Corel WordPerfect Other software / Other software solutions
Vendor	Corel

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU56950

Risk: Medium

CVSSv3.1: 6.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2021-38108

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

Exploit availability: No

Description

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.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Corel WordPerfect: All versions

External links

http://www.fortiguard.com/zeroday/FG-VD-21-037

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Out-of-bounds write

EUVDB-ID: #VU56951

Risk: High

CVSSv3.1: 9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2021-38110

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