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CVE-2020-11810 · cross-distro fix matrix

CVE-2020-11810: An issue was discovered in OpenVPN 2.4.x before 2.4.9. An attacker can inject a data channel v2 (P_DATA_V2) packet using a victim's peer-id. Normally such packets are dropped, but if this packet arrives before the data channel crypto parameters have been initialized, the victim's connection will be

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

Fix per ecosystem

Each block below is a distro release where CVE-2020-11810 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • openvpn→ fixed in2.4.9-1urgency: low
    sudo apt-get install --only-upgrade -y openvpn

Debian bookworm

Source: Debian Security Tracker

  • openvpn→ fixed in2.4.9-1urgency: low
    sudo apt-get install --only-upgrade -y openvpn

Debian trixie

Source: Debian Security Tracker

  • openvpn→ fixed in2.4.9-1urgency: low
    sudo apt-get install --only-upgrade -y openvpn

Alpine v3.20

Source: Alpine secdb

  • openvpn→ fixed in2.4.9-r0
    apk update && apk add --upgrade openvpn

Alpine v3.21

Source: Alpine secdb

  • openvpn→ fixed in2.4.9-r0
    apk update && apk add --upgrade openvpn

Alpine edge

Source: Alpine secdb

  • openvpn→ fixed in2.4.9-r0
    apk update && apk add --upgrade openvpn

Alpine v3.18

Source: Alpine secdb

  • openvpn→ fixed in2.4.9-r0
    apk update && apk add --upgrade openvpn

Alpine v3.19

Source: Alpine secdb

  • openvpn→ fixed in2.4.9-r0
    apk update && apk add --upgrade openvpn
Are YOU affected by CVE-2020-11810?

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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