Infinite Loop in Mutt Email Client

Compliance Impact

The provided information does not specify any direct impact of this vulnerability on compliance with common standards and regulations such as GDPR or HIPAA.

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Executive Summary

This vulnerability is an infinite loop in the mutt email client, specifically in the function data_object_to_stream within the crypt-gpgme.c file. The problem arises because the code does not properly handle a -1 return value from a read operation, causing the loop to continue indefinitely.

As a result, the program may print excessively beyond the intended buffer size into the stream, which can lead to memory corruption or other unintended behaviors.

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Impact Analysis

The infinite loop can cause the mutt email client to hang or become unresponsive due to the continuous looping.

Additionally, the excessive printing beyond the buffer size may lead to memory corruption, which could potentially be exploited to cause crashes or other unpredictable behavior in the application.

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Mitigation Strategies

To mitigate this vulnerability, you should update the mutt email client to a version later than 2.3.2 where the infinite loop issue in the gpgme data_object_to_stream() function has been fixed.

The fix involves handling the -1 return value from a read operation properly to prevent the infinite loop and potential memory corruption.

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