CVE-2017-7522 · cross-distro fix matrix

CVE-2017-7522: OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service by authenticated remote attacker via sending a certificate with an embedded NULL character.

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

EPSS:5.5% · 30-day exploit probability92th percentile

Fix per ecosystem

Each block below is a distro release where CVE-2017-7522 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

openvpn→ fixed in2.4.3-1urgency: unimportant

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

Debian bookworm

Source: Debian Security Tracker

openvpn→ fixed in2.4.3-1urgency: unimportant

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

Debian trixie

Source: Debian Security Tracker

openvpn→ fixed in2.4.3-1urgency: unimportant

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

Are YOU affected by CVE-2017-7522?

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

Form-based quickscan View on NVD

Continuous monitoring beats manual checking

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