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vulnerability note CVE-2014-4068 CVE-2014-4070 CVE-2014-4071

Microsoft Lync: multiple vulnerabilities

Synthesis of the vulnerability

An attacker can use several vulnerabilities of Microsoft Lync.
Vulnerable systems: Lync.
Severity of this threat: 3/4.
Consequences of a hack: client access/rights, denial of service on service.
Pirate's origin: internet client.
Number of vulnerabilities in this bulletin: 3.
Creation date: 09/09/2014.
Références of this weakness: 2990928, CERTFR-2014-AVI-378, CVE-2014-4068, CVE-2014-4070, CVE-2014-4071, MS14-055, VIGILANCE-VUL-15314.

Description of the vulnerability

Several vulnerabilities were announced in Microsoft Lync.

An attacker can generate an exception, in order to trigger a denial of service. [severity:3/4; CVE-2014-4068]

An attacker can trigger a Cross Site Scripting, in order to execute JavaScript code in the context of the web site. [severity:2/4; CVE-2014-4070]

An attacker can force a NULL pointer to be dereferenced, in order to trigger a denial of service. [severity:3/4; CVE-2014-4071]
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