Hancom Office buffer overflow | CVE-2021-21958
NAME
Hancom Office buffer overflow
- Platforms Affected:
Hancom Hancom Office 2020 11.0.0.2353 - Risk Level:
7.8 - Exploitability:
Proof of Concept - Consequences:
Gain Access
DESCRIPTION
Hancom Office is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by the Hword HwordApp.dll functionality. By persuading a victim to open a specially-crafted file, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause a denial of service.
CVSS 3.0 Information
- Privileges Required: None
- User Interaction: Required
- Scope: Unchanged
- Access Vector: Local
- Access Complexity: Low
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
- Remediation Level: Unavailable
MITIGATION
No remedy available as of February 16, 2022.
- Reference Link:
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1386 - Reference Link:
https://office.hancom.com/
If you like the site, please consider joining the telegram channel and supporting us on Patreon using the button below.
