CVE-2022-23822
In this physical attack, an attacker may potentially exploit the Zynq-7000 SoC First Stage Boot Loader (FSBL) by bypassing authentication and loading a malicious image onto the device.
Does this matter?
Lower severity and a low EPSS score (0.26%). Track it; it rarely justifies an emergency change on its own.
Description
In this physical attack, an attacker may potentially exploit the Zynq-7000 SoC First Stage Boot Loader (FSBL) by bypassing authentication and loading a malicious image onto the device. This in turn may further allow the attacker to perform additional attacks such as such as using the device as a decryption oracle. An anticipated mitigation via a 2022.1 patch will resolve the issue.
- CVSS 3.1
- 6.8 MEDIUMCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.26% probability · 17th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-863
- Affected
- xilinx/zynq-7000s firmware · xilinx/zynq-7000 firmware
- Source
- psirt@amd.com
References
- https://github.com/Xilinx/embeddedsw/tree/master/lib/sw_apps/zynq_fsblThird Party Advisory
- https://support.xilinx.com/s/article/76974Vendor Advisory
- https://github.com/Xilinx/embeddedsw/tree/master/lib/sw_apps/zynq_fsblThird Party Advisory
- https://support.xilinx.com/s/article/76974Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.