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Last updated: 8/30/2014 2:18:31 AM

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National Cyber Awareness System

Vulnerability Summary for CVE-2007-4429

Original release date: 08/20/2007
Last revised: 09/05/2008
Source: US-CERT/NIST

Overview

Unspecified vulnerability in Skype allows remote attackers to cause a denial of service (server hang) via unknown vectors related to sending long URIs, as claimed to be actively exploited on 20070817 using a "call to a specific number." NOTE: this identifier is for the en.securitylab.ru disclosure. According to the vendor, this issue is separate from the "sign-on issues" that reduced Skype service on 20070817, which appears to be a site-specific problem. As of 20070821, it is not clear whether this issue is simply a symptom of the larger sign-on problem.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 5.0 (MEDIUM) (AV:N/AC:L/Au:N/C:N/I:N/A:P) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows disruption of service

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External Source: MISC
Name: http://www.securitylab.ru/news/301422.php
External Source: MISC
Name: http://en.securitylab.ru/poc/extra/301419.php
External Source: SREASON
Name: 3032
External Source: BUGTRAQ
Name: 20070820 Re[2]: Skype Network Remote DoS Exploit
External Source: MISC
Name: http://en.securitylab.ru/poc/301420.php
External Source: BUGTRAQ
Name: 20070817 Skype Network Remote DoS Exploit
External Source: MISC
Name: http://blogs.csoonline.com/the_skype_mystery_why_blame_the_august_windows_updates
External Source: BUGTRAQ
Name: 20070820 RE: Skype Network Remote DoS Exploit
External Source: MISC
Name: http://heartbeat.skype.com/2007/08/what_happened_on_august_16.html
External Source: BUGTRAQ
Name: 20070820 Re: Skype Network Remote DoS Exploit
External Source: MISC
Name: http://heartbeat.skype.com/2007/08/where_we_are_at_1100_gmt.html

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