CVE-2018-16789 · cross-distro fix matrix

CVE-2018-16789: libhttp/url.c in shellinabox through 2.20 has an implementation flaw in the HTTP request parsing logic. By sending a crafted multipart/form-data HTTP request, an attacker could exploit this to force shellinaboxd into an infinite loop, exhausting available CPU resources and taking the service down.

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

Fix per ecosystem

Each block below is a distro release where CVE-2018-16789 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

shellinabox→ fixed in2.21urgency: low

sudo apt-get install --only-upgrade -y shellinabox

Debian bookworm

Source: Debian Security Tracker

shellinabox→ fixed in2.21urgency: low

sudo apt-get install --only-upgrade -y shellinabox

Debian trixie

Source: Debian Security Tracker

shellinabox→ fixed in2.21urgency: low

sudo apt-get install --only-upgrade -y shellinabox

Are YOU affected by CVE-2018-16789?

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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