VULNERABILITY INTELLIGENCE

CVE-2022-2347

CVSS score7.7 HIGH
EPSS probability0.58%
CISA KEVNot currently listed
Published2022-09-23
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Description

There exists an unchecked length field in UBoot. The U-Boot DFU implementation does not bound the length field in USB DFU download setup packets, and it does not verify that the transfer direction corresponds to the specified command. Consequently, if a physical attacker crafts a USB DFU download setup packet with a `wLength` greater than 4096 bytes, they can write beyond the heap-allocated request buffer.

Weakness classification

  • cve-coordination@google.com: CWE-122
  • nvd@nist.gov: CWE-787

Primary references