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CVE-2021-32749 · cross-distro fix matrix

CVE-2021-32749: fail2ban is a daemon to ban hosts that cause multiple authentication errors. In versions 0.9.7 and prior, 0.10.0 through 0.10.6, and 0.11.0 through 0.11.2, there is a vulnerability that leads to possible remote code execution in the mailing action mail-whois. Command `mail` from mailutils package us

Affects 8 Linux releases across 8 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2021-32749 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • fail2ban→ fixed in0.11.2-2urgency: not yet assigned
    sudo apt-get install --only-upgrade -y fail2ban

Debian bookworm

Source: Debian Security Tracker

  • fail2ban→ fixed in0.11.2-2urgency: not yet assigned
    sudo apt-get install --only-upgrade -y fail2ban

Debian trixie

Source: Debian Security Tracker

  • fail2ban→ fixed in0.11.2-2urgency: not yet assigned
    sudo apt-get install --only-upgrade -y fail2ban

Alpine v3.20

Source: Alpine secdb

  • fail2ban→ fixed in0.11.2-r2
    apk update && apk add --upgrade fail2ban

Alpine v3.21

Source: Alpine secdb

  • fail2ban→ fixed in0.11.2-r2
    apk update && apk add --upgrade fail2ban

Alpine edge

Source: Alpine secdb

  • fail2ban→ fixed in0.11.2-r2
    apk update && apk add --upgrade fail2ban

Alpine v3.18

Source: Alpine secdb

  • fail2ban→ fixed in0.11.2-r2
    apk update && apk add --upgrade fail2ban

Alpine v3.19

Source: Alpine secdb

  • fail2ban→ fixed in0.11.2-r2
    apk update && apk add --upgrade fail2ban
Are YOU affected by CVE-2021-32749?

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