CVE-2020-14372 · cross-distro fix matrix

CVE-2020-14372: A flaw was found in grub2 in versions prior to 2.06, where it incorrectly enables the usage of the ACPI command when Secure Boot is enabled. This flaw allows an attacker with privileged access to craft a Secondary System Description Table (SSDT) containing code to overwrite the Linux kernel lockdown

Affects 8 Linux releases across 8 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2020-14372 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

grub2→ fixed in2.04-16urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y grub2
```

Debian bookworm

Source: Debian Security Tracker

grub2→ fixed in2.04-16urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y grub2
```

Debian trixie

Source: Debian Security Tracker

grub2→ fixed in2.04-16urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y grub2
```

Alpine v3.20

Source: Alpine secdb

grub→ fixed in2.06-r0
```
apk update && apk add --upgrade grub
```

Alpine v3.21

Source: Alpine secdb

grub→ fixed in2.06-r0
```
apk update && apk add --upgrade grub
```

Alpine edge

Source: Alpine secdb

grub→ fixed in2.06-r0
```
apk update && apk add --upgrade grub
```

Alpine v3.18

Source: Alpine secdb

grub→ fixed in2.06-r0
```
apk update && apk add --upgrade grub
```

Alpine v3.19

Source: Alpine secdb

grub→ fixed in2.06-r0
```
apk update && apk add --upgrade grub
```

Are YOU affected by CVE-2020-14372?

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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