#VU49297 Unsigned to Signed Conversion Error in TextMaker 2021 - CVE-2020-13545

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Main Vulnerability Database Vulnerabilities #VU49297

#VU49297 Unsigned to Signed Conversion Error in TextMaker 2021 - CVE-2020-13545

Published: January 6, 2021


Vulnerability identifier: #VU49297
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-13545
CWE-ID: CWE-196
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
TextMaker 2021
Software vendor:
SoftMaker

Description


The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to unsigned to signed conversion error in the TextMaker document parsing functionality within record 0x003f. A remote attacker can trick a victim to open a specially crafted document and cause the document parser to miscalculate a length used to allocate a buffer, leading to a heap-based memory corruption.


Remediation

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

External links