Debian Security Advisory

DLA-1297-1 freexl -- LTS security update

Date Reported:
01 Mar 2018
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2018-7435, CVE-2018-7436, CVE-2018-7437, CVE-2018-7438, CVE-2018-7439.
More information:

Several vulnerabilities have been discovered in SimpleSAMLphp, a framework for authentication, primarily via the SAML protocol.

  • CVE-2016-9814 / CVE-2016-9955

    An incorrect check of return values in the signature validation utilities allowed an attacker to get invalid signatures accepted as valid in the rare case of an error occurring during validation.

  • SSPSA-201802-01 (no CVE yet)

    Critical signature validation vulnerability.

In addition this update adds a patch to solve excessive resource consumption in case of SimpleSAMLphp processing a large metadata file.

For Debian 7 Wheezy, these problems have been fixed in version 1.9.2-1+deb7u3.

We recommend that you upgrade your simplesamlphp packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: