CVE-2019-5478 Security feature bypass in Zynq UltraScale+ SoC
An attacker can modify boot image control fields in Encrypt Only mode to bypass secure boot verification on Zynq UltraScale+ devices.
- 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-2019-5478?
CVE-2019-5478 is a medium-severity vulnerability in Zynq UltraScale+ SoC, published on 3 Sep 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A weakness was found in Encrypt Only boot mode in Zynq UltraScale+ devices. This could lead to an adversary being able to modify the control fields of the boot image leading to an incorrect secure boot behavior.
Which versions are affected by CVE-2019-5478?
It affects 41 products.
Products include Amd Zu11eg Firmware, Amd Zu15eg Firmware, Amd Zu17eg Firmware, Amd Zu19eg Firmware, Amd Zu1cg Firmware, Amd Zu1eg Firmware and 35 more.
How do I fix CVE-2019-5478?
No fix has been published for CVE-2019-5478 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-5478 being exploited?
There is no known exploitation of CVE-2019-5478 in the wild and no public exploit code.
Sources
Also known as GHSA-mj5p-5fc7-225v.