Headline
CVE-2021-31513: ZDI-21-691
This vulnerability allows remote attackers to execute arbitrary code on affected installations of OpenText Brava! Desktop Build 16.6.4.55. 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 BMP files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-13678.
June 15th, 2021
OpenText Brava! Desktop BMP File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability****ZDI-21-691
ZDI-CAN-13678
CVE ID
CVE-2021-31513
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 BMP files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.
ADDITIONAL DETAILS
Fixed in Lt2dl 1.5.17.38
DISCLOSURE TIMELINE
- 2021-04-16 - Vulnerability reported to vendor
- 2021-06-15 - Coordinated public release of advisory
CREDIT
Michael DePlante (@izobashi) of Trend Micro’s Zero Day Initiative
BACK TO ADVISORIES