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CVE-2013-2099 · cross-distro fix matrix

CVE-2013-2099: Algorithmic complexity vulnerability in the ssl.match_hostname function in Python 3.2.x, 3.3.x, and earlier, and unspecified versions of python-backports-ssl_match_hostname as used for older Python versions, allows remote attackers to cause a denial of service (CPU consumption) via multiple wildcard

Affects 3 Linux releases across 13 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2013-2099 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • bzr→ fixed in2.6.0~bzr6574-1urgency: low
    sudo apt-get install --only-upgrade -y bzr
  • linkchecker→ fixed in8.5-1urgency: low
    sudo apt-get install --only-upgrade -y linkchecker
  • python-tornado→ fixed in2.4.1-3urgency: low
    sudo apt-get install --only-upgrade -y python-tornado
  • python-urllib3→ fixed in1.6-2urgency: low
    sudo apt-get install --only-upgrade -y python-urllib3
  • python2.7→ fixed in2.7.5-5urgency: low
    sudo apt-get install --only-upgrade -y python2.7

Debian bookworm

Source: Debian Security Tracker

  • bzr→ fixed in2.6.0~bzr6574-1urgency: low
    sudo apt-get install --only-upgrade -y bzr
  • linkchecker→ fixed in8.5-1urgency: low
    sudo apt-get install --only-upgrade -y linkchecker
  • python-tornado→ fixed in2.4.1-3urgency: low
    sudo apt-get install --only-upgrade -y python-tornado
  • python-urllib3→ fixed in1.6-2urgency: low
    sudo apt-get install --only-upgrade -y python-urllib3

Debian trixie

Source: Debian Security Tracker

  • bzr→ fixed in2.6.0~bzr6574-1urgency: low
    sudo apt-get install --only-upgrade -y bzr
  • linkchecker→ fixed in8.5-1urgency: low
    sudo apt-get install --only-upgrade -y linkchecker
  • python-tornado→ fixed in2.4.1-3urgency: low
    sudo apt-get install --only-upgrade -y python-tornado
  • python-urllib3→ fixed in1.6-2urgency: low
    sudo apt-get install --only-upgrade -y python-urllib3
Are YOU affected by CVE-2013-2099?

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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