Vulnerability · Published Apr 20, 2021 · Assigned by palo_alto

CVE-2021-3038GlobalProtect App: Windows VPN kernel driver denial of service (DoS)

Medium 5.5

In plain English

A medium-severity improper input validation in GlobalProtect App from Palo Alto Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).

Severity (CVSS 3.1)5.5Medium

Exploit odds (30 days)0.2%top 87.6% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

A denial-of-service (DoS) vulnerability in Palo Alto Networks GlobalProtect app on Windows systems allows a limited Windows user to send specifically-crafted input to the GlobalProtect app that results in a Windows blue screen of death (BSOD) error. This issue impacts: GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.8; GlobalProtect app 5.2 versions earlier than GlobalProtect app 5.2.4.

Affected products (as reported)

Vendor	Product	Versions
Palo Alto Networks	GlobalProtect App	5.1 – before 5.1.85.2 – before 5.2.4

Weakness: CWE-20, CWE-248 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

https://security.paloaltonetworks.com/CVE-2021-3038 x_refsource_MISC