Stack-based buffer overflow in the XML Signature Reference functionality (xsec/dsig/DSIGReference.cpp) in Apache Santuario XML Security for C++ (aka xml-security-c) before 1.7.1 allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via malformed XPointer expressions, probably related to the DSIGReference::getURIBaseTXFM function.
https://www.tenable.com/security/tns-2018-15
http://www.debian.org/security/2013/dsa-2710
http://santuario.apache.org/secadv.data/CVE-2013-2154.txt
http://archives.neohapsis.com/archives/fulldisclosure/2013-06/0141.html