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Last updated: 12/21/2014 12:21:45 PM

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National Cyber Awareness System

Vulnerability Summary for CVE-2007-3728

Original release date: 07/12/2007
Last revised: 03/07/2011


Buffer overflow in lib/silcclient/client_notify.c of SILC Client and SILC Toolkit before 1.1.2 allows remote attackers to cause a denial of service via "NICK_CHANGE" notifications.


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

Vendor Statements (disclaimer)

Official Statement from Red Hat (07/17/2007)
Not vulnerable. libsilc was not shipped with Enterprise Linux 2.1 or 3. This issue did not affect the versions of libsilc as shipped with Red Hat Enterprise Linux 4 or 5.

References to Advisories, Solutions, and Tools

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External Source: VUPEN
Name: ADV-2007-2454
External Source: CONFIRM
Name: http://www.silcnet.org/docs/release/SILC%20Toolkit%201.1.2
External Source: OSVDB
Name: 36730
External Source: SECUNIA
Name: 25939
Type: Advisory
External Source: BID
Name: 24795
External Source: XF
Name: silc-clienttoolkit-nickchange-bo(35281)
External Source: CONFIRM
Name: http://silcnet.org/docs/changelog/changes.txt

Vulnerable software and versions

+ Configuration 1
+ OR
* cpe:/a:silc:silc_client:1.1.1
* cpe:/a:silc:silc_toolkit:1.1.1

* Denotes Vulnerable Software
Changes related to vulnerability configurations

Technical Details

Vulnerability Type (View All)