SILC Server NEW_CLIENT denial of service
| silc-server-newclient-dos (41307) |  Medium Risk |
Description:
SILC Server is vulnerable to a denial of service attack caused by the improper handling of packets. A remote attacker could send a NEW_CLIENT packet without a nickname to crash the server.
*CVSS:
| Base Score: | 5 |
| Access Vector: | Network |
| Access Complexity: | Low |
| Authentication: | None |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Partial |
| Temporal Score: | 3.7 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
Remedy:
Upgrade to the latest version of SILC Server (1.1.1 or later), available from the SILC Server Web site. See References.
References:
- SILC Server Web site: SILC Secure Internet Live Conferencing.
- SILC Web site: SILC Server 1.1.1 Release Notes.
- BID-28450: SILC Server 'NEW_CLIENT' Remote Denial of Service Vulnerability
- CVE-2008-1429: Secure Internet Live Conferencing (SILC) Server before 1.1.1 allows remote attackers to cause a denial of service (daemon crash) via a NEW_CLIENT packet without a nickname.
- SA29459: SILC Server "NEW_CLIENT" Packet Denial of Service
- SECTRACK ID: 1019711: Secure Internet Live Conferencing (SILC) Can Be Crashed By Remote Users With a NEW_CLIENT Packet
- VUPEN/ADV-2008-0919: SILC Server NEW_CLIENT Packets Denial of Service Vulnerability
Platforms Affected:
- Pekka Riikonen SILC Server prior to 1.1.1
Reported:
Mar 14, 2008
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
For corrections or additions please email xforce@iss.net
* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.