Advisory Details

September 19th, 2022

Adobe InCopy PCX File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

ZDI-22-1272
ZDI-CAN-17608

CVE ID CVE-2022-38401
CVSS SCORE 7.8, AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS Adobe
AFFECTED PRODUCTS InCopy
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Adobe InCopy. 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 PCX files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

ADDITIONAL DETAILS Adobe has issued an update to correct this vulnerability. More details can be found at:
https://helpx.adobe.com/security/products/incopy/apsb22-53.html
DISCLOSURE TIMELINE
  • 2022-06-03 - Vulnerability reported to vendor
  • 2022-09-19 - Coordinated public release of advisory
CREDIT Mat Powell of Trend Micro Zero Day Initiative
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