CVE-2020-2031 PAN-OS: Integer underflow in the management interface
Authenticated administrators can cause a denial of service in PAN-OS by triggering an integer underflow in the dnsproxyd component.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-2031?
CVE-2020-2031 is a medium-severity vulnerability in Paloaltonetworks Pan-Os, published on 8 Jul 2020. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
An integer underflow vulnerability in the dnsproxyd component of the PAN-OS management interface allows authenticated administrators to issue a command from the command line interface that causes the component to stop responding. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts: PAN-OS 9.1 versions earlier than PAN-OS 9.1.3. This issue does not impact PAN-OS 8.1, PAN-OS 9.0, or Prisma Access services.
Weakness: CWE-191
Which versions are affected by CVE-2020-2031?
It affects 1 product.
Products include Paloaltonetworks Pan-Os.
How do I fix CVE-2020-2031?
No fix has been published for CVE-2020-2031 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-2031 being exploited?
There is no known exploitation of CVE-2020-2031 in the wild and no public exploit code.
Other vulnerabilities in Paloaltonetworks Pan-Os
- CVE-2024-3400 Palo Alto Networks PAN-OS Command Injection
- CVE-2020-2021 Palo Alto Networks PAN-OS Authentication Bypass
- CVE-2017-15944 Palo Alto Networks PAN-OS Remote Code Execution
- CVE-2026-0300 Palo Alto Networks PAN-OS Out-of-bounds Write
- CVE-2024-0012 Palo Alto Networks PAN-OS Management Interface Authentication Bypass
Sources
Also known as GHSA-xqxw-q9gm-q8wr.