🛡️ CVE-2022-2347 on Debian — u-boot

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Distribution advisory

This page covers CVE-2022-2347 as tracked by Debian, for the package u-boot. The fix is available in version 2023.01~rc4+dfsg-2; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached with physical access to the device, attack complexity is high, an attacker needs no privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

DEBIAN-CVE-2022-2347 is classified as CWE-122: Heap-based Buffer Overflow. A write past the end of a heap allocation corrupts allocator metadata or neighbouring objects.

Affected software

DEBIAN-CVE-2022-2347 is recorded against 1 package.

  • u-boot (fixed in 2023.01~rc4+dfsg-2)

Timeline and source

Published on 23 September 2022 and last revised on 4 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

security-tracker.debian.org (Advisory)

CVE-2022-2347 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2022-09-23
Updated 2026-08-20
Modified 2026-08-04
Fix URL N/A

Affected Packages

Software From version Fixed in
u-boot — 2023.01~rc4+dfsg-2

Similar Threats

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