Denial of Service Vulnerability in Pidgin
Summary
CVE-2011-4603: The silc_channel_message function in ops.c in the SILC protocol plugin in libpurple in Pidgin before 2.10.1 does not perform the expected UTF-8 validation on message data, which allows remote attackers to cause a denial... Affects pidgin versions < 2.10.1-1. Fixed in 2.10.1-1. How to fix ↓
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Background
Pidgin is an open-source instant messaging client that supports multiple chat protocols. It is widely used for its cross-platform compatibility and extensive plugin support. However, a vulnerability has been discovered in Pidgin that can lead to a denial of service (DoS) attack.
Vulnerability Detail
The vulnerability, identified as CVE-2011-4603, exists in the SILC protocol plugin in libpurple, the underlying library used by Pidgin. The 'silc_channel_message' function in 'ops.c' does not properly validate UTF-8 encoded message data. This flaw allows remote attackers to send crafted messages that can crash the application, resulting in a DoS condition. It is important to note that this vulnerability is distinct from CVE-2011-3594.
How To Fix
Minimum fixed version
2.10.1-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade pidginTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no known workaround for this vulnerability. It is essential to apply the provided fix by updating Pidgin to the latest version.
Conclusion
In conclusion, the vulnerability in Pidgin allows remote attackers to crash the application through specially crafted messages. To mitigate this risk, it is crucial to update Pidgin to version 2.10.1-1 or later. For further assistance or support in addressing this vulnerability, please contact DevNack.com.
See every vulnerability recorded for pidgin →
FAQ
The vulnerability allows remote attackers to crash the Pidgin application, leading to a denial of service. However, it does not enable arbitrary code execution or unauthorized access to the system.
The vulnerability affects Pidgin versions prior to 2.10.1-1.
There is no known exploit available for this vulnerability at the moment.
The only effective mitigation is to update Pidgin to the fixed version.
Yes, remote attackers can exploit this vulnerability by sending crafted messages to the target Pidgin client.
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