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CVE-2021-44273 · cross-distro fix matrix

CVE-2021-44273: e2guardian v5.4.x <= v5.4.3r is affected by missing SSL certificate validation in the SSL MITM engine. In standalone mode (i.e., acting as a proxy or a transparent proxy), with SSL MITM enabled, e2guardian, if built with OpenSSL v1.1.x, did not validate hostnames in certificates of the web servers t

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-44273 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • e2guardian→ fixed in5.3.4-1+deb11u1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y e2guardian

Debian bookworm

Source: Debian Security Tracker

  • e2guardian→ fixed in5.3.5-3urgency: not yet assigned
    sudo apt-get install --only-upgrade -y e2guardian

Debian trixie

Source: Debian Security Tracker

  • e2guardian→ fixed in5.3.5-3urgency: not yet assigned
    sudo apt-get install --only-upgrade -y e2guardian

Alpine v3.20

Source: Alpine secdb

  • e2guardian→ fixed in5.4.5r-r0
    apk update && apk add --upgrade e2guardian

Alpine v3.21

Source: Alpine secdb

  • e2guardian→ fixed in5.4.5r-r0
    apk update && apk add --upgrade e2guardian

Alpine edge

Source: Alpine secdb

  • e2guardian→ fixed in5.4.5r-r0
    apk update && apk add --upgrade e2guardian

Alpine v3.18

Source: Alpine secdb

  • e2guardian→ fixed in5.4.5r-r0
    apk update && apk add --upgrade e2guardian

Alpine v3.19

Source: Alpine secdb

  • e2guardian→ fixed in5.4.5r-r0
    apk update && apk add --upgrade e2guardian
Are YOU affected by CVE-2021-44273?

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