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CVE-2023-22796 · cross-distro fix matrix

CVE-2023-22796: A regular expression based DoS vulnerability in Active Support <6.1.7.1 and <7.0.4.1. A specially crafted string passed to the underscore method can cause the regular expression engine to enter a state of catastrophic backtracking. This can cause the process to use large amounts of CPU and memory, l

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

Fix per ecosystem

Each block below is a distro release where CVE-2023-22796 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • rails→ fixed in2:6.0.3.7+dfsg-2+deb11u1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y rails

Debian bookworm

Source: Debian Security Tracker

  • rails→ fixed in2:6.1.7.3+dfsg-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y rails

Debian trixie

Source: Debian Security Tracker

  • rails→ fixed in2:6.1.7.3+dfsg-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y rails

Alpine v3.20

Source: Alpine secdb

  • ruby-activesupport→ fixed in7.0.4.3-r0
    apk update && apk add --upgrade ruby-activesupport

Alpine v3.21

Source: Alpine secdb

  • ruby-activesupport→ fixed in7.0.4.3-r0
    apk update && apk add --upgrade ruby-activesupport

Alpine edge

Source: Alpine secdb

  • ruby-activesupport→ fixed in7.0.4.3-r0
    apk update && apk add --upgrade ruby-activesupport

Alpine v3.18

Source: Alpine secdb

  • ruby-activesupport→ fixed in7.0.4.3-r0
    apk update && apk add --upgrade ruby-activesupport

Alpine v3.19

Source: Alpine secdb

  • ruby-activesupport→ fixed in7.0.4.3-r0
    apk update && apk add --upgrade ruby-activesupport
Are YOU affected by CVE-2023-22796?

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
Continuous monitoring beats manual checking

CVE-2023-22796dropped 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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