CVE-2025-11683 · cross-distro fix matrix

CVE-2025-11683: YAML::Syck versions before 1.36 for Perl has missing null-terminators which causes out-of-bounds read and potential information disclosure Missing null terminators in token.c leads to but-of-bounds read which allows adjacent variable to be read The issue is seen with complex YAML files with a hash

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

Fix per ecosystem

Each block below is a distro release where CVE-2025-11683 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

libyaml-syck-perl→ fixed in1.34-1+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libyaml-syck-perl
```

Debian bookworm

Source: Debian Security Tracker

libyaml-syck-perl→ fixed in1.34-2+deb12u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libyaml-syck-perl
```

Debian trixie

Source: Debian Security Tracker

libyaml-syck-perl→ fixed in1.34-2+deb13u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libyaml-syck-perl
```

Are YOU affected by CVE-2025-11683?

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

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