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Vulnerability record · CVE-2005-3891 · published 29 November 2005

CVE-2005-3891: Gadu-gadu instant messenger vulnerability

GGadu Gadu · Gadu Gadu Instant Messenger

Stack-based buffer overflow in Gadu-Gadu 7.20 allows remote attackers to cause a denial of service (crash) via an image filename between exactly 192 to 200 characters, which does not account for the "imgcache\" string that is added to the end of the buffer.

7.8 CVSS 2.0 High EPSS 2.3% · top 17.1%
7.8CVSS 2.0 base score
2.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
12References
16 Jun 2026Last modified by NVD

Description

Stack-based buffer overflow in Gadu-Gadu 7.20 allows remote attackers to cause a denial of service (crash) via an image filename between exactly 192 to 200 characters, which does not account for the "imgcache\" string that is added to the end of the buffer.

AV:N/AC:L/Au:N/C:N/I:N/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://archives.neohapsis.com/archives/fulldisclosure/2005-11/0658.html Vendor Advisory
http://marc.info/?l=bugtraq&m=113261573023912&w=2
http://secunia.com/advisories/17597/ PatchVendor Advisory
http://www.osvdb.org/21016
http://www.securityfocus.com/bid/15520/
https://exchange.xforce.ibmcloud.com/vulnerabilities/23149
http://archives.neohapsis.com/archives/fulldisclosure/2005-11/0658.html Vendor Advisory
http://marc.info/?l=bugtraq&m=113261573023912&w=2
http://secunia.com/advisories/17597/ PatchVendor Advisory
http://www.osvdb.org/21016
http://www.securityfocus.com/bid/15520/
https://exchange.xforce.ibmcloud.com/vulnerabilities/23149

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2004-1232Gadu-gadu instant messenger vulnerabilityStack-based buffer overflow in the code that sends images in Gadu-Gadu allows remote attackers to execute arbitrary code via a large image filename.EPSS 6.2%7.8CVE-2005-3888Gadu-gadu instant messenger vulnerabilityMemory 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…EPSS 2.2%7.8CVE-2005-3890Gadu-gadu instant messenger vulnerabilityGadu-Gadu 7.20 allows remote attackers to cause a denial of service (crash and configuration loss) via a page with a large number of gg: URIs.EPSS 2.1%7.5CVE-2004-1229Gadu-gadu instant messenger vulnerabilityCross-site scripting vulnerability in the parser for Gadu-Gadu allows remote attackers to inject arbitrary web script or HTML via (1) http:// or (2) …EPSS 1.6%7.5CVE-2004-1676Gadu-gadu instant messenger vulnerabilityHeap-based buffer overflow in the image sending feature in Gadu-Gadu 6.0 build 149 allows remote attackers to execute arbitrary code via a crafted GG…EPSS 3.3%5.4CVE-2005-3887Gadu-gadu instant messenger vulnerabilityGadu-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 a…EPSS 1.9%5.0CVE-2005-3892Gadu-gadu instant messenger vulnerabilityGadu-Gadu 7.20 allows remote attackers to eavesdrop on a user via a web page that accesses the EasycallLite.oce ActiveX control, which can initiate a…EPSS 1.4%5.0CVE-2004-1230Gadu-gadu instant messenger vulnerabilityGadu-Gadu allows remote attackers to gain sensitive information and read files from the _cache directory of other users via a DCC connection and a CT…EPSS 1.4%

Source: NIST National Vulnerability Database (record CVE-2005-3891), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.