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CVE-2018-10191 · cross-distro fix matrix

CVE-2018-10191: In versions of mruby up to and including 1.4.0, an integer overflow exists in src/vm.c::mrb_vm_exec() when handling OP_GETUPVAR in the presence of deep scope nesting, resulting in a use-after-free. An attacker that can cause Ruby code to be run can use this to possibly execute arbitrary code.

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

Fix per ecosystem

Each block below is a distro release where CVE-2018-10191 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • mruby→ fixed in1.4.0+20180418+git54905e98-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y mruby

Debian bookworm

Source: Debian Security Tracker

  • mruby→ fixed in1.4.0+20180418+git54905e98-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y mruby

Debian trixie

Source: Debian Security Tracker

  • mruby→ fixed in1.4.0+20180418+git54905e98-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y mruby
Are YOU affected by CVE-2018-10191?

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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