Advisory Details

October 13th, 2021

Adobe Illustrator PDF File Parsing Use-After-Free Information Disclosure Vulnerability

ZDI-21-1146
ZDI-CAN-13901

CVE ID CVE-2021-36008
CVSS SCORE 3.3, (AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N)
AFFECTED VENDORS Adobe
AFFECTED PRODUCTS Illustrator
VULNERABILITY DETAILS

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Adobe Illustrator. 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. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary 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/illustrator/apsb21-42.html
DISCLOSURE TIMELINE
  • 2021-05-26 - Vulnerability reported to vendor
  • 2021-10-13 - Coordinated public release of advisory
CREDIT Mat Powell of Trend Micro Zero Day Initiative
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