CVE-2017-12874 SimpleSAMLphp InfoCard module Incorrect signature verification

What is CVE-2017-12874?

CVE-2017-12874 is a high-severity vulnerability in Debian Debian Linux, published on 1 Sep 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The InfoCard module 1.0 for SimpleSAMLphp allows attackers to spoof XML messages by leveraging an incorrect check of return values in signature validation utilities.

Weakness: CWE-20

Which versions are affected by CVE-2017-12874?

2 open source packages ship an affected version, including simplesamlphp/simplesamlphp-module-infocard. It affects 2 products.

Products include Debian Debian Linux, Simplesamlphp Infocard Module.

How do I fix CVE-2017-12874?

Upgrade simplesamlphp/simplesamlphp-module-infocard to 1.0.1 or later.

Is CVE-2017-12874 being exploited?

There is no known exploitation of CVE-2017-12874 in the wild and no public exploit code.

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• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
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All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2017-12874, GHSA-fj28-869x-vv5g, UBUNTU-CVE-2017-12874.