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Vulnerability of Apache XML Security for C++: NULL pointer dereference via KeyInfo

Synthesis of the vulnerability 

An attacker can force a NULL pointer to be dereferenced via KeyInfo of Apache XML Security for C++, in order to trigger a denial of service.
Impacted products: Apache XML Security for C++, Debian, Shibboleth SP.
Severity of this bulletin: 2/4.
Creation date: 06/08/2018.
Références of this threat: DLA-1458-1, DSA-4265-1, SANTUARIO-491, VIGILANCE-VUL-26907.

Description of the vulnerability 

An attacker can force a NULL pointer to be dereferenced via KeyInfo of Apache XML Security for C++, in order to trigger a denial of service.
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This vulnerability impacts software or systems such as Apache XML Security for C++, Debian, Shibboleth SP.

Our Vigil@nce team determined that the severity of this security announce is medium.

The trust level is of type confirmed by the editor, with an origin of document.

An attacker with a expert ability can exploit this computer vulnerability note.

Solutions for this threat 

Apache XML Security for C++: version 2.0.1.
The version 2.0.1 is fixed:
  http://santuario.apache.org/cindex.html

Debian 8: new xml-security-c packages.
New packages are available:
  Debian 8: xml-security-c 1.7.2-3+deb8u1

Debian 9: new xml-security-c packages.
New packages are available:
  Debian 9: xml-security-c 1.7.3-4+deb9u1

Shibboleth Service Provider: version 3.0.2.
The version 3.0.2 is fixed:
  https://shibboleth.net/downloads/service-provider/latest/win32/
  https://shibboleth.net/downloads/service-provider/latest/win64/
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