gSOAP: Vulnerable to specially crafted unencrypted SDC messages

Vulnerability Description

In Genivia gSOAP with a specific configuration an unauthenticated remote attacker can generate a high CPU load when forcing to parse an XML having duplicate ID attributes which can lead to a DoS.

References

• https://sourceforge.net/p/gsoap2/code/HEAD/tree/changelog.md
• https://www.genivia.com/advisory.html#Upgrade_recommendation_when_option_-c++11_is_used_to_generate_C++11_source_code