This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-71971 →

DEBIAN-CVE-2026-71971

U-Boot before 2026.10-rc3 with CONFIG_IP_DEFRAG enabled contains an out-of-bounds write vulnerability in the __net_defragment() function in net/net.c....

Original description

The description as published by the source.

U-Boot before 2026.10-rc3 with CONFIG_IP_DEFRAG enabled contains an out-of-bounds write vulnerability in the __net_defragment() function in net/net.c. Remote attackers can send a crafted IP fragment with non-zero offset and More-Fragments flag set during netboot to corrupt adjacent memory and crash the bootloader.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 u-boot

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 u-boot

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:14 u-boot

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

References

advisory security-tracker.debian.org