National Cyber Awareness System
Vulnerability Summary for CVE-2011-4603
Original release date:12/17/2011
Last revised:11/06/2012
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):
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 serviceUnknown
References to Advisories, Solutions, and Tools
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External Source: CONFIRM
Name: http://www.pidgin.im/news/security/?id=59
Type: Advisory; Patch Information
External Source: CONFIRM
Name: http://developer.pidgin.im/viewmtn/revision/diff/c7b95cc3be0590b52edc02d4750ae62844c1acb6/with/afb9ede3de989f217f03d5670cca00e628bd11f1/libpurple/protocols/silc/ops.c
Type: Patch Information
External Source: SUSE
Name: openSUSE-SU-2012:0066
External Source: BID
Name: 51074
External Source: REDHAT
Name: RHSA-2011:1820
External Source: SECUNIA
Name: 47234
External Source: CONFIRM
Name: http://developer.pidgin.im/viewmtn/revision/info/afb9ede3de989f217f03d5670cca00e628bd11f1
