CVE-2021-40391 · cross-distro fix matrix

CVE-2021-40391: An out-of-bounds write vulnerability exists in the drill format T-code tool number functionality of Gerbv 2.7.0, dev (commit b5f1eacd), and the forked version of Gerbv (commit 71493260). A specially-crafted drill file can lead to code execution. An attacker can provide a malicious file to trigger th

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-40391 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

gerbv→ fixed in2.7.0-2+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y gerbv
```

Debian bookworm

Source: Debian Security Tracker

gerbv→ fixed in2.7.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y gerbv
```

Debian trixie

Source: Debian Security Tracker

gerbv→ fixed in2.7.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y gerbv
```

Are YOU affected by CVE-2021-40391?

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-2021-40391dropped 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)