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CVE-2019-12855 · cross-distro fix matrix

CVE-2019-12855: In words.protocols.jabber.xmlstream in Twisted through 19.2.1, XMPP support did not verify certificates when used with TLS, allowing an attacker to MITM connections.

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

Fix per ecosystem

Each block below is a distro release where CVE-2019-12855 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • twisted→ fixed in18.9.0-7urgency: not yet assigned
    sudo apt-get install --only-upgrade -y twisted

Debian bookworm

Source: Debian Security Tracker

  • twisted→ fixed in18.9.0-7urgency: not yet assigned
    sudo apt-get install --only-upgrade -y twisted

Debian trixie

Source: Debian Security Tracker

  • twisted→ fixed in18.9.0-7urgency: not yet assigned
    sudo apt-get install --only-upgrade -y twisted

Alpine v3.20

Source: Alpine secdb

  • py3-twisted→ fixed in19.7.0-r0
    apk update && apk add --upgrade py3-twisted

Alpine v3.21

Source: Alpine secdb

  • py3-twisted→ fixed in19.7.0-r0
    apk update && apk add --upgrade py3-twisted

Alpine edge

Source: Alpine secdb

  • py3-twisted→ fixed in19.7.0-r0
    apk update && apk add --upgrade py3-twisted

Alpine v3.18

Source: Alpine secdb

  • py3-twisted→ fixed in19.7.0-r0
    apk update && apk add --upgrade py3-twisted

Alpine v3.19

Source: Alpine secdb

  • py3-twisted→ fixed in19.7.0-r0
    apk update && apk add --upgrade py3-twisted
Are YOU affected by CVE-2019-12855?

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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