CVE-2009-0790 · cross-distro fix matrix

CVE-2009-0790: The pluto IKE daemon in Openswan and Strongswan IPsec 2.6 before 2.6.21 and 2.4 before 2.4.14, and Strongswan 4.2 before 4.2.14 and 2.8 before 2.8.9, allows remote attackers to cause a denial of service (daemon crash and restart) via a crafted (1) R_U_THERE or (2) R_U_THERE_ACK Dead Peer Detection (

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

Fix per ecosystem

Each block below is a distro release where CVE-2009-0790 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

strongswan→ fixed in4.2.14-1urgency: medium

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

Debian bookworm

Source: Debian Security Tracker

strongswan→ fixed in4.2.14-1urgency: medium

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

Debian trixie

Source: Debian Security Tracker

strongswan→ fixed in4.2.14-1urgency: medium

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

Are YOU affected by CVE-2009-0790?

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.

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