Advisory Details

December 21st, 2021

Adobe Media Encoder MOV File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

ZDI-21-1574
ZDI-CAN-15258

CVE ID CVE-2021-43760
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 Media Encoder
VULNERABILITY DETAILS

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Adobe Media Encoder. 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 MOV files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. 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/media-encoder/apsb21-118.html
DISCLOSURE TIMELINE
  • 2021-09-15 - 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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