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Midnight Commander VFS symlink buffer overflow
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Secunia Advisory:
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SA9833
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Release Date:
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2003-09-24
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Last Update:
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2004-01-17
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Popularity:
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8,712 views
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Critical:
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Moderately critical
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Impact:
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System access
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Where:
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From remote
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Solution Status:
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Unpatched
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| Software: | GNU Midnight Commander 4.x
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| CVE reference: | CVE-2003-1023
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Description:
A vulnerability has been identified in Midnight Commander (mc), which potentially can be exploited by malicious people to compromise a user's system.
The vulnerability is caused due to a boundary error when handling symlinks in compressed files. This can be exploited by constructing a compressed file containing overly long, specially crafted symlinks. This will cause a stack overflow when a user tries to view the content of the malicious compressed file using mc.
The vulnerability has been confirmed in version 4.5.55 but should reportedly affect versions 4.5.52 through 4.6.0.
Solution:
Don't use mc to view the contents of untrusted compressed files.
Provided and/or discovered by:
Ilya Teterin
Changelog:
2004-01-17: Added CVE reference.
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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