CVE-2020-25647 · cross-distro fix matrix

CVE-2020-25647: A flaw was found in grub2 in versions prior to 2.06. During USB device initialization, descriptors are read with very little bounds checking and assumes the USB device is providing sane values. If properly exploited, an attacker could trigger memory corruption leading to arbitrary code execution all

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

Fix per ecosystem

Each block below is a distro release where CVE-2020-25647 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-2020-25647?

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.

curl https://mindsparkstack.com/scan.sh | bash

Form-based quickscan View on NVD

Continuous monitoring beats manual checking

CVE-2020-25647dropped silently in your distro's update channel. Every new CVE is the same story. StackPatch runs the matcher hourly against all 5 sources and emails the exact remediation when something new applies to one of your servers. $99 lifetime, 50 founder seats, 30-day refund.

See StackPatch ($99 lifetime)