CVE-2018-3968 · cross-distro fix matrix

CVE-2018-3968: An exploitable vulnerability exists in the verified boot protection of the Das U-Boot from version 2013.07-rc1 to 2014.07-rc2. The affected versions lack proper FIT signature enforcement, which allows an attacker to bypass U-Boot's verified boot and execute an unsigned kernel, embedded in a legacy i

Affects 3 Linux releases across 3 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2018-3968 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

u-boot→ fixed in2014.07+dfsg1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y u-boot
```

Debian bookworm

Source: Debian Security Tracker

u-boot→ fixed in2014.07+dfsg1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y u-boot
```

Debian trixie

Source: Debian Security Tracker

u-boot→ fixed in2014.07+dfsg1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y u-boot
```

Are YOU affected by CVE-2018-3968?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

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