barebox prior to version 2026.04.0 contains an out-of-bounds read vulnerability in DHCP option parsing within the dhcp_message_type() function that fails to verify the options pointer remains within …
Medium CVSS 6.5
Summary
barebox prior to version 2026.04.0 contains an out-of-bounds read vulnerability in DHCP option parsing within the dhcp_message_type() function that fails to verify the options pointer remains within received packet bounds. An attacker on the same broadcast domain can send a crafted DHCP Offer or ACK packet without a proper 0xff end marker to cause the parser to read past valid packet data and potentially crash the system.
In-depth triage · Auto channel
No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).
Affected products
- :
Lint boundary warnings (1)
The following non-blocking warnings were raised during the lint phase of this triage (e.g. reference URLs not yet on the allowlist). They do not affect entry usability and are disclosed for transparency (see DR-002).
-
REF_URL_NOT_ALLOWLISTEDurl not in allowlist: https://y637f9qq2x.com/posts/barebox-sandbox-vulns/
Sources
- NVD DATABASE
Original Links
- https://github.com/barebox/barebox Product
- https://github.com/barebox/barebox/releases/tag/v2026.04.0 Release Notes
- https://www.vulncheck.com/advisories/barebox-out-of-bounds-read-in-dhcp-option-parsing Third Party Advisory
- https://y637f9qq2x.com/posts/barebox-sandbox-vulns/
Timeline
- nvd_ingest NVD