Input validation error in Kaspersky Lab products - CVE-2021-27223

Vulnerability identifier: #VU62698

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-27223

CWE-ID: CWE-20

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A local user can run a specially crafted application and perform a denial of service (DoS) attack.

Kaspersky Anti-Virus
Kaspersky Internet Security
Total Security
Small Office Security
Security Cloud
Endpoint Security for Windows

Install updates from vendor's website.

Kaspersky Anti-Virus - update to 21.3.10.391(c)
Kaspersky Internet Security - update to 21.3.10.391(c)
Total Security - update to 21.3.10.391(c)
Small Office Security - update to 21.3.10.391(c)
Security Cloud - update to 21.3.10.391(c)
Endpoint Security for Windows - update to 21.3.10.391(c)

• https://support.kaspersky.com/general/vulnerability.aspx?el=12430#310322_1

• Denial of service in Kaspersky Anti-Virus products for home and Endpoint Security