Advisory Details

March 15th, 2021

Adobe FrameMaker PDF File Parsing Out-of-Bounds Read Remote Code Execution Vulnerability

ZDI-21-282
ZDI-CAN-12514

CVE ID CVE-2021-21056
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 FrameMaker
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Adobe FrameMaker. 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 PDF files. Crafted data in a PDF file can trigger a read past the end of an allocated 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/framemaker/apsb21-14.html
DISCLOSURE TIMELINE
  • 2021-01-05 - Vulnerability reported to vendor
  • 2021-03-15 - Coordinated public release of advisory
CREDIT Francis Provencher {PRL}
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