CVE-2025-32989 · cross-distro fix matrix

CVE-2025-32989: A heap-buffer-overread vulnerability was found in GnuTLS in how it handles the Certificate Transparency (CT) Signed Certificate Timestamp (SCT) extension during X.509 certificate parsing. This flaw allows a malicious user to create a certificate containing a malformed SCT extension (OID 1.3.6.1.4.1.

Affects 2 Linux releases across 2 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2025-32989 has a known fix. Run the listed command on that distro to remediate.

Debian bookworm

Source: Debian Security Tracker

gnutls28→ fixed in3.7.9-2+deb12u5urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y gnutls28
```

Debian trixie

Source: Debian Security Tracker

gnutls28→ fixed in3.8.9-3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y gnutls28
```

Are YOU affected by CVE-2025-32989?

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-2025-32989dropped 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)