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CVE-2020-6817 · cross-distro fix matrix

CVE-2020-6817: bleach.clean behavior parsing style attributes could result in a regular expression denial of service (ReDoS). Calls to bleach.clean with an allowed tag with an allowed style attribute are vulnerable to ReDoS. For example, bleach.clean(..., attributes={'a': ['style']}).

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

Fix per ecosystem

Each block below is a distro release where CVE-2020-6817 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • python-bleach→ fixed in3.1.4-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y python-bleach

Debian bookworm

Source: Debian Security Tracker

  • python-bleach→ fixed in3.1.4-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y python-bleach

Debian trixie

Source: Debian Security Tracker

  • python-bleach→ fixed in3.1.4-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y python-bleach
Are YOU affected by CVE-2020-6817?

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