CVE-2020-5898 Null dereference in F5 Edge Client
A local attacker can crash the Windows kernel by sending crafted requests to the F5 Edge Client driver due to unsanitized pointer handling.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-5898?
CVE-2020-5898 is a medium-severity vulnerability in F5 Big-Ip Access Policy Manager, published on 12 May 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In versions 7.1.5-7.1.9, BIG-IP Edge Client Windows Stonewall driver does not sanitize the pointer received from the userland. A local user on the Windows client system can send crafted DeviceIoControl requests to \\.\urvpndrv device causing the Windows kernel to crash.
Which versions are affected by CVE-2020-5898?
It affects 2 products.
Products include F5 Big-Ip Access Policy Manager, F5 Big-Ip Access Policy Manager Client.
How do I fix CVE-2020-5898?
No fix has been published for CVE-2020-5898 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-5898 being exploited?
There is no known exploitation of CVE-2020-5898 in the wild and no public exploit code.
Other vulnerabilities in F5 Big-Ip Access Policy Manager
- CVE-2023-46747 F5 BIG-IP Configuration Utility Authentication Bypass
- CVE-2022-1388 F5 BIG-IP Missing Authentication
- CVE-2021-22986 F5 BIG-IP and BIG-IQ Centralized Management iControl REST Remote Code Execution
- CVE-2021-22991 F5 BIG-IP Traffic Management Microkernel Buffer Overflow
- CVE-2020-5902 F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution
Sources
Also known as GHSA-jp6c-5v5f-m9j9.