Gadu-Gadu image filename denial of service

gadugadu-image-filename-dos (23148)

Medium Risk

Description:

Gadu-Gadu is vulnerable to a denial of service, caused by the improper handling of MS-DOS device names in filenames. By sending multiple image filenames of AUX or writing to the LPT1 port using an image filename of "LPT1", a remote attacker could exploit this vulnerability to cause the application to hang resulting in a denial of service.

*CVSS:

Base Score:	3.5
Access Vector:	Remote
Access Complexity:	Low
Authentication:	Not Required
Confidentiality Impact:	None
Integrity Impact:	None
Availability Impact:	Partial
Temporal Score:	2.6
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-2005-3887: Gadu-Gadu 7.20 does not properly handle MS-DOS device names in filenames, which allows remote attackers to (1) cause a denial of service (hang) via an image filename of AUX: sent twice (hang), or (2) write to the LPT1 port via a filename of LPT1:.
• OSVDB ID: 21015: Gadu-Gadu MS-DOS Filename Transfer DoS
• SA17597: Gadu-Gadu Multiple Vulnerabilities and Weaknesses

Platforms Affected:

• sms-express.com Gadu-Gadu 7.20 and prior

Reported:

Nov 21, 2005

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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.

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