Advisory Details

August 18th, 2021

Adobe Bridge SGI File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

ZDI-21-994
ZDI-CAN-13854

CVE ID CVE-2021-36073
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 Bridge
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Adobe Bridge. 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 SGI 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/bridge/apsb21-69.html
DISCLOSURE TIMELINE
  • 2021-05-27 - Vulnerability reported to vendor
  • 2021-08-18 - Coordinated public release of advisory
CREDIT kdot
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