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K
zdiJaanus Kp, Clarified SecurityZDI-19-054
HistoryJan 17, 2019 - 12:00 a.m.

Microsoft Office Word wwlib Use-After-Free Remote Code Execution Vulnerability

2019-01-1700:00:00
Jaanus Kp, Clarified Security
www.zerodayinitiative.com
22

0.18 Low

EPSS

Percentile

96.2%

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Office Word. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the processing of DOC files in wwlib. A crafted file can cause a pointer to be reused after it has been freed. An attacker can leverage this vulnerability to execute code in the context of the current process.