EchoVNC for Linux CLogger::WriteFormated() buffer overflow
| echovnc-clogger-bo (44501) |  High Risk |
Description:
EchoVNC for Linux is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the CLogger::WriteFormated() function. By persuading a victim to connect to an Echo server that returns an overly large group list, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
*CVSS:
| Base Score: | 6.8 |
| Access Vector: | Network |
| Access Complexity: | Medium |
| Authentication: | None |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 5 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of EchoVNC for Linux (1.1.2 or later), available from SourceForge.net: Files. See References.
References:
- SourceForge.net: EchoVNC.
- SourceForge.net: Files: EchoVNC, File Release Notes and Changelog, Release Name: EchoVNC Linux 1.1.2.
- BID-30722: EchoVNC Remote Buffer Overflow Vulnerability
- CVE-2008-3705: Stack-based buffer overflow in the CLogger::WriteFormated function in echoware/Logger.cpp in EchoVNC Linux before 1.1.2 allows remote echoServers to execute arbitrary code via a large (1) group or (2) user list, aka a very crowded echoServer attack. NOTE: some of these details are obtained from third party information.
- SA31526: EchoVNC for Linux "CLogger::WriteFormated()" Buffer Overflow
Platforms Affected:
- EchoVNC for Linux EchoVNC for Linux 1.01
- EchoVNC for Linux EchoVNC for Linux 1.1.1
Reported:
Aug 18, 2008
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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.