CVE-2021-3698 · cross-distro fix matrix

CVE-2021-3698: A flaw was found in Cockpit in versions prior to 260 in the way it handles the certificate verification performed by the System Security Services Daemon (SSSD). This flaw allows client certificates to authenticate successfully, regardless of the Certificate Revocation List (CRL) configuration or the

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-3698 has a known fix. Run the listed command on that distro to remediate.

Debian bookworm

Source: Debian Security Tracker

cockpit→ fixed in260-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y cockpit
```

Debian trixie

Source: Debian Security Tracker

cockpit→ fixed in260-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y cockpit
```

Are YOU affected by CVE-2021-3698?

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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