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Xsok "LANG" Environment Variable Privilege Escalation Vulnerability
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Secunia Advisory:
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SA10513
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Release Date:
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2003-12-30
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Last Update:
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2004-01-06
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Popularity:
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6,377 views
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Critical:
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Not critical
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Impact:
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Privilege escalation
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Where:
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Local system
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Solution Status:
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Unpatched
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| Software: | Xsok 1.x
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Description:
A vulnerability has been reported in Xsok, which potentially can be exploited by malicious, local users to gain escalated privileges.
The vulnerability is caused due to a boundary error in the "setlangdir()" function when handling the "LANG" environment variable. This can be exploited by setting an overly long value, which causes a buffer overflow.
Successful exploitation may grant higher privileges on systems where Xsok has been installed sgid or suid.
The vulnerability has been reported in version 1.02. Other versions may also be affected.
Solution:
Remove suid or sgid bits.
Provided and/or discovered by:
Debian
Changelog:
2004-01-02: Updated "Description" section with more information.
2004-01-06: Removed erroneous CVE reference.
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About this Secunia Advisory
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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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