CVE-2019-11503 · cross-distro fix matrix

CVE-2019-11503: snap-confine as included in snapd before 2.39 did not guard against symlink races when performing the chdir() to the current working directory of the calling user, aka a "cwd restore permission bypass."

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

Fix per ecosystem

Each block below is a distro release where CVE-2019-11503 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

snapd→ fixed in2.40-1urgency: low

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

Debian bookworm

Source: Debian Security Tracker

snapd→ fixed in2.40-1urgency: low

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

Debian trixie

Source: Debian Security Tracker

snapd→ fixed in2.40-1urgency: low

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

Are YOU affected by CVE-2019-11503?

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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