SB2020121711 - Denial of service in QEMU in F5 Networks BIG-IP products
Published: December 17, 2020
Security Bulletin ID
SB2020121711
Severity
Medium
Patch available
NO
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2020-25084)
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error in USB(xHCI/eHCI) controller emulators of QEMU in hw/usb/hcd-xhci.c and hw/usb/hcd-ehci.c files when processing USB packets. A remote user on the guest operating system can send specially crafted data to the controller, trigger a use-after-free error and crash the QEMU process.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.