CVE-2021-31507
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 1.8%
exploitation probability
1.8%top 23% of all CVEs
observed exploitation
nono source reports it
In short
OpenText Brava! Desktop has a flaw in how it reads CGM image files that allows attackers to run malicious code if you open a specially crafted file. The program doesn't properly check the size of data before storing it, causing a buffer overflow.
Technical detail
Stack-based buffer overflow in CGM file parsing due to insufficient validation of user-supplied data length. Requires user interaction (opening malicious file/visiting malicious page). Successful exploitation allows arbitrary code execution in the context of the vulnerable application process.
Summary generated and translated by AI from the official description.
This vulnerability allows remote attackers to execute arbitrary code on affected installations of OpenText Brava! Desktop 16.6.3.84. 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 CGM files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-12653.
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
OpenText · Brava! Desktop