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CVE-2022-0711 · cross-distro fix matrix

CVE-2022-0711: A flaw was found in the way HAProxy processed HTTP responses containing the "Set-Cookie2" header. This flaw could allow an attacker to send crafted HTTP response packets which lead to an infinite loop, eventually resulting in a denial of service condition. The highest threat from this vulnerability

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

Fix per ecosystem

Each block below is a distro release where CVE-2022-0711 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • haproxy→ fixed in2.2.9-2+deb11u3urgency: not yet assigned
    sudo apt-get install --only-upgrade -y haproxy

Debian bookworm

Source: Debian Security Tracker

  • haproxy→ fixed in2.4.13-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y haproxy

Debian trixie

Source: Debian Security Tracker

  • haproxy→ fixed in2.4.13-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y haproxy
Are YOU affected by CVE-2022-0711?

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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CVE-2022-0711dropped silently in your distro's update channel. Every new CVE is the same story. StackPatch runs the matcher hourly against all 5 sources and emails the exact remediation when something new applies to one of your servers. $99 lifetime, 50 founder seats, 30-day refund.

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