Advisory Details

June 2nd, 2021

OpenText Brava! Desktop DXF File Parsing Memory Corruption Remote Code Execution Vulnerability

ZDI-21-635
ZDI-CAN-13307

CVE ID CVE-2021-31495
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 DXF files. The issue results from the lack of proper validation of user-supplied data, which can result in a memory corruption condition. An attacker can leverage this vulnerability to execute code in the context of the current process.

ADDITIONAL DETAILS

Fixed in version 6.6.4.114


DISCLOSURE TIMELINE
  • 2021-03-03 - Vulnerability reported to vendor
  • 2021-06-02 - Coordinated public release of advisory
CREDIT Michael DePlante (@izobashi) of Trend Micro's Zero Day Initiative
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