Advisory Details

August 13th, 2019

Microsoft Word DOC File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability

ZDI-19-715
ZDI-CAN-8599

CVE ID CVE-2019-1201
CVSS SCORE 7.0, (AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Word
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft 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 parsing of DOC files. Crafted data in a DOC file can trigger an overflow of a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

ADDITIONAL DETAILS Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1201
DISCLOSURE TIMELINE
  • 2019-05-29 - Vulnerability reported to vendor
  • 2019-08-13 - Coordinated public release of advisory
CREDIT L4Nce
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