#VU69943 Out-of-bounds write in Universal Boot Loader (U-Boot) - CVE-2022-2347
Published: December 6, 2022
Vulnerability identifier: #VU69943
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-2347
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Universal Boot Loader (U-Boot)
Universal Boot Loader (U-Boot)
Software vendor:
DENX
DENX
Description
The vulnerability allows an attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error in the U-Boot DFU implementation when processing download setup packets. An attacker with physical access to device can send a USB DFU download setup packet with a `wLength` greater than 4096 bytes, trigger a heap-based buffer overflow and execute arbitrary code on the system.
Remediation
Install updates from vendor's website.