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Last updated: 12/20/2014 10:47:12 AM

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National Cyber Awareness System

Vulnerability Summary for CVE-2011-4603

Original release date: 12/16/2011
Last revised: 11/02/2013
Source: US-CERT/NIST

Overview

The silc_channel_message function in ops.c in the SILC protocol plugin in libpurple in Pidgin before 2.10.1 does not perform the expected UTF-8 validation on message data, which allows remote attackers to cause a denial of service (application crash) via a crafted message, a different vulnerability than CVE-2011-3594.

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

References to Advisories, Solutions, and Tools

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External Source: CONFIRM
Name: http://developer.pidgin.im/viewmtn/revision/info/afb9ede3de989f217f03d5670cca00e628bd11f1
External Source: SECUNIA
Name: 47234
External Source: BID
Name: 51074
External Source: CONFIRM
Name: http://developer.pidgin.im/viewmtn/revision/diff/c7b95cc3be0590b52edc02d4750ae62844c1acb6/with/afb9ede3de989f217f03d5670cca00e628bd11f1/libpurple/protocols/silc/ops.c
Type: Patch Information
External Source: CONFIRM
Name: http://www.pidgin.im/news/security/?id=59
Type: Advisory; Patch Information
External Source: OVAL
Name: oval:org.mitre.oval:def:18303
External Source: SUSE
Name: openSUSE-SU-2012:0066
External Source: REDHAT
Name: RHSA-2011:1820

Technical Details

Vulnerability Type (View All)