CVE-2021-44228 · cross-distro fix matrix

CVE-2021-44228: Apache Log4j2 2.0-beta9 through 2.15.0 (excluding security releases 2.12.2, 2.12.3, and 2.3.1) JNDI features used in configuration, log messages, and parameters do not protect against attacker controlled LDAP and other JNDI related endpoints. An attacker who can control log messages or log message p

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

Actively exploited in the wild

CVE-2021-44228 is on the CISA Known Exploited Vulnerabilities catalog (added 2021-12-10)— meaning attackers have a working exploit and are using it now. It is also linked to ransomware campaigns. This is a patch-tonight, not patch-someday.

EPSS:100% · 30-day exploit probability100th percentile

Fix per ecosystem

Each block below is a distro release where CVE-2021-44228 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

apache-log4j2→ fixed in2.15.0-1~deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y apache-log4j2
```

Debian bookworm

Source: Debian Security Tracker

apache-log4j2→ fixed in2.15.0-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y apache-log4j2
```

Debian trixie

Source: Debian Security Tracker

apache-log4j2→ fixed in2.15.0-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y apache-log4j2
```

Are YOU affected by CVE-2021-44228?

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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