CVE-2016-9955 · cross-distro fix matrix

CVE-2016-9955: The SimpleSAML_XML_Validator class constructor in SimpleSAMLphp before 1.14.11 might allow remote attackers to spoof signatures on SAML 1 responses or possibly cause a denial of service (memory consumption) by leveraging improper conversion of return values to boolean.

Affects 2 Linux releases across 2 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2016-9955 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

simplesamlphp→ fixed in1.14.11-1urgency: low

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

Debian bookworm

Source: Debian Security Tracker

simplesamlphp→ fixed in1.14.11-1urgency: low

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

Are YOU affected by CVE-2016-9955?

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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