This vulnerability allows local attackers to create a denial-of-service condition on affected installations of Microsoft Visual Studio. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the Visual Studio installer. By creating a symbolic link, an attacker can abuse the installer to write a file. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.
This vulnerability is being disclosed publicly without a patch in accordance with the ZDI 120 day deadline.
07/07/21 – ZDI reported the vulnerabilities to the vendor
|Michael DePlante (@izobashi) of Trend Micro's Zero Day Initiative