Vulnerability · Published Oct 13, 2021 · Assigned by palo_alto

CVE-2021-3057GlobalProtect App: Buffer Overflow Vulnerability When Connecting to Portal or Gateway

High 8.1

In plain English

A high-severity stack buffer overflow 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 1.4% (higher than 73% of all known vulnerabilities).

Severity (CVSS 3.1)8.1High

Exploit odds (30 days)1.4%top 26.9% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

A stack-based buffer overflow vulnerability exists in the Palo Alto Networks GlobalProtect app that enables a man-in-the-middle attacker to disrupt system processes and potentially execute arbitrary code with SYSTEM privileges. This issue impacts: GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.9 on Windows; GlobalProtect app 5.2 versions earlier than GlobalProtect app 5.2.8 on Windows; GlobalProtect app 5.2 versions earlier than GlobalProtect app 5.2.8 on the Universal Windows Platform; GlobalProtect app 5.3 versions earlier than GlobalProtect app 5.3.1 on Linux.

Affected products (as reported)

Vendor	Product	Versions
Palo Alto Networks	GlobalProtect App	5.1 – before 5.1.95.2 – before 5.2.8
Palo Alto Networks	GlobalProtect App	5.3 – before 5.3.1
Palo Alto Networks	GlobalProtect App	5.2 – before 5.2.8

Weakness: CWE-121 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

https://security.paloaltonetworks.com/CVE-2021-3057 x_refsource_MISC