Advisory Details

December 21st, 2021

Adobe Premiere Rush MP4 File Parsing Uninitialized Variable Information Disclosure Vulnerability

ZDI-21-1557
ZDI-CAN-13736

CVE ID CVE-2021-43746
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 Premiere Rush
VULNERABILITY DETAILS

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Adobe Premiere Rush. 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 MP4 files. The issue results from the lack of proper initialization of memory prior to accessing it. 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/premiere_rush/apsb21-101.html
DISCLOSURE TIMELINE
  • 2021-04-30 - Vulnerability reported to vendor
  • 2021-12-21 - Coordinated public release of advisory
CREDIT Mat Powell of Trend Micro Zero Day Initiative
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