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CVE-2018-5099 · cross-distro fix matrix

CVE-2018-5099: A use-after-free vulnerability can occur when the widget listener is holding strong references to browser objects that have previously been freed, resulting in a potentially exploitable crash when these references are used. This vulnerability affects Thunderbird < 52.6, Firefox ESR < 52.6, and Firef

Affects 8 Linux releases across 11 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2018-5099 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • firefox-esr→ fixed in52.6.0esr-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y firefox-esr
  • thunderbird→ fixed in1:52.6.0-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y thunderbird

Debian bookworm

Source: Debian Security Tracker

  • firefox-esr→ fixed in52.6.0esr-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y firefox-esr
  • thunderbird→ fixed in1:52.6.0-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y thunderbird

Debian trixie

Source: Debian Security Tracker

  • firefox-esr→ fixed in52.6.0esr-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y firefox-esr
  • thunderbird→ fixed in1:52.6.0-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y thunderbird

Alpine v3.20

Source: Alpine secdb

  • firefox-esr→ fixed in52.6.0-r0
    apk update && apk add --upgrade firefox-esr

Alpine v3.21

Source: Alpine secdb

  • firefox-esr→ fixed in52.6.0-r0
    apk update && apk add --upgrade firefox-esr

Alpine edge

Source: Alpine secdb

  • firefox-esr→ fixed in52.6.0-r0
    apk update && apk add --upgrade firefox-esr

Alpine v3.18

Source: Alpine secdb

  • firefox-esr→ fixed in52.6.0-r0
    apk update && apk add --upgrade firefox-esr

Alpine v3.19

Source: Alpine secdb

  • firefox-esr→ fixed in52.6.0-r0
    apk update && apk add --upgrade firefox-esr
Are YOU affected by CVE-2018-5099?

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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