Gadu-Gadu DCC packet denial of service
| gadugadu-dcc-packet-dos (23150) |  Medium Risk |
Description:
Gadu-Gadu is vulnerable to a denial of service, caused by the improper handling of direct connections. By sending multiple specially-crafted DCC packets, a remote attacker could consume an overly large amount of memory resources, resulting in a denial of service.
*CVSS:
| Base Score: | 5 |
| Access Vector: | Remote |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Complete |
| Temporal Score: | 3.7 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
Remedy:
Upgrade to the latest version of Gadu-Gadu (7 build 22 or later), available from the Gadu-Gadu Web site. See References.
References:
- Full-Disclosure Mailing List, Mon Nov 21 2005 - 03:26:01 CST: Gadu-Gadu several vulnerabilities (version <= 7.20.
- Gadu-Gadu Web site: Gadu - Gadu; polski komunikator internetowy.
- BID-15520: Gadu-Gadu Multiple Remote Vulnerabilities
- CVE-2005-3888: Memory leak in Gadu-Gadu 7.20 allows remote attackers to cause a denial of service via multiple DCC packets with a code other than 2 and a large size field, which allocates memory for the packet but does not free it after the packet has been dropped.
- OSVDB ID: 21017: Gadu-Gadu Crafted CTCP Packet Saturation Memory Exhaustion DoS
- OSVDB ID: 21018: Gadu-Gadu DCC Packet Saturation Thread Exhaustion DoS
- SA17597: Gadu-Gadu Multiple Vulnerabilities and Weaknesses
Platforms Affected:
- sms-express.com Gadu-Gadu 7.20
Reported:
Nov 21, 2005
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.