OpenText Brava! Desktop SLDDRW File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

December 3rd, 2021
ZDI-21-1405 ZDI-CAN-14139

CVE ID

CVSS Score

7.8 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors

OpenText

Affected Products

Brava! Desktop

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on affected installations of OpenText Brava! Desktop. 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 SLDDRW 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

Fixed in version 16.6.5.


Disclosure Timeline

  • 2021-06-16 - Vulnerability reported to vendor
  • 2021-12-03 - Coordinated public release of advisory

Credit

Mat Powell of Trend Micro Zero Day Initiative

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