FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

shibboleth-sp -- crashes on malformed date/time content

Affected packages
3.0.0 <= shibboleth-sp < 3.0.3


VuXML ID 4f8665d0-0465-11e9-b77a-6cc21735f730
Discovery 2018-12-19
Entry 2018-12-20

The Shibboleth Consortium reports:

SAML messages, assertions, and metadata all commonly contain date/time information in a standard XML format.

Invalid formatted data in such fields cause an exception of a type that was not handled properly in the V3 software and causes a crash (usually to the shibd daemon process, but possibly to Apache in rare cases). Note that the crash occurs prior to evaluation of a message's authenticity, so can be exploited by an untrusted attacker.

The problem is believed to be specific to the V3 software and would not cause a crash in the older, now unsupported, V2 software.