SB2022120643 - Arbitrary code execution in U-Boot DFU implementation
Published: December 6, 2022
Security Bulletin ID
SB2022120643
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Physical access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds write (CVE-ID: CVE-2022-2347)
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 update from vendor's website.