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CVE-2022-23959 · cross-distro fix matrix

CVE-2022-23959: In Varnish Cache before 6.6.2 and 7.x before 7.0.2, Varnish Cache 6.0 LTS before 6.0.10, and and Varnish Enterprise (Cache Plus) 4.1.x before 4.1.11r6 and 6.0.x before 6.0.9r4, request smuggling can occur for HTTP/1 connections.

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

Fix per ecosystem

Each block below is a distro release where CVE-2022-23959 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • varnish→ fixed in6.5.1-1+deb11u2urgency: not yet assigned
    sudo apt-get install --only-upgrade -y varnish

Debian bookworm

Source: Debian Security Tracker

  • varnish→ fixed in7.1.0-5urgency: not yet assigned
    sudo apt-get install --only-upgrade -y varnish

Debian trixie

Source: Debian Security Tracker

  • varnish→ fixed in7.1.0-5urgency: not yet assigned
    sudo apt-get install --only-upgrade -y varnish

Alpine v3.20

Source: Alpine secdb

  • varnish→ fixed in7.0.2-r0
    apk update && apk add --upgrade varnish

Alpine v3.21

Source: Alpine secdb

  • varnish→ fixed in7.0.2-r0
    apk update && apk add --upgrade varnish

Alpine edge

Source: Alpine secdb

  • varnish→ fixed in7.0.2-r0
    apk update && apk add --upgrade varnish

Alpine v3.18

Source: Alpine secdb

  • varnish→ fixed in7.0.2-r0
    apk update && apk add --upgrade varnish

Alpine v3.19

Source: Alpine secdb

  • varnish→ fixed in7.0.2-r0
    apk update && apk add --upgrade varnish
Are YOU affected by CVE-2022-23959?

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
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