Heap-based buffer overflow in Microsoft products - CVE-2020-1338

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing Microsoft Word files. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

How to mitigate CVE-2020-1338

Sources

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1338
• https://www.zerodayinitiative.com/advisories/ZDI-20-1131/