Denial of service in Palo Alto GlobalProtect app
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-3038 |
| CWE-ID | CWE-248 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
GlobalProtect Agent Client/Desktop applications / Antivirus software/Personal firewalls |
| Vendor | Palo Alto Networks, Inc. |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Uncaught exception
EUVDB-ID: #VU52224
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-3038
CWE-ID:
CWE-248 - Uncaught Exception
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to uncaught exception in Windows VPN kernel driver. A local user can pass specifically-crafted input to the GlobalProtect app that results in a Windows blue screen of death (BSOD) error.
MitigationInstall updates from vendor's website.
Vulnerable software versionsGlobalProtect Agent: 5.1.0 - 5.2.3
External linkshttp://security.paloaltonetworks.com/CVE-2021-3038
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
