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CVE-2023-43622 · cross-distro fix matrix

CVE-2023-43622: An attacker, opening a HTTP/2 connection with an initial window size of 0, was able to block handling of that connection indefinitely in Apache HTTP Server. This could be used to exhaust worker resources in the server, similar to the well known "slow loris" attack pattern. This has been fixed in ver

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

Fix per ecosystem

Each block below is a distro release where CVE-2023-43622 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • apache2→ fixed in2.4.59-1~deb11u1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y apache2

Debian bookworm

Source: Debian Security Tracker

  • apache2→ fixed in2.4.59-1~deb12u1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y apache2

Debian trixie

Source: Debian Security Tracker

  • apache2→ fixed in2.4.58-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y apache2

Alpine v3.20

Source: Alpine secdb

  • apache2→ fixed in2.4.58-r0
    apk update && apk add --upgrade apache2

Alpine v3.21

Source: Alpine secdb

  • apache2→ fixed in2.4.58-r0
    apk update && apk add --upgrade apache2

Alpine edge

Source: Alpine secdb

  • apache2→ fixed in2.4.58-r0
    apk update && apk add --upgrade apache2

Alpine v3.18

Source: Alpine secdb

  • apache2→ fixed in2.4.58-r0
    apk update && apk add --upgrade apache2

Alpine v3.19

Source: Alpine secdb

  • apache2→ fixed in2.4.58-r0
    apk update && apk add --upgrade apache2
Are YOU affected by CVE-2023-43622?

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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