TITLE:
LSH lshd Seed-file File Descriptor Leak Vulnerability
SECUNIA ADVISORY ID:
SA18564
VERIFY ADVISORY:
http://secunia.com/advisories/18564/
CRITICAL:
Less critical
IMPACT:
Exposure of sensitive information, DoS
WHERE:
Local system
SOFTWARE:
LSH 2.x
http://secunia.com/product/4787/
DESCRIPTION:
A vulnerability has been reported in LSH, which can be exploited by
malicious, local users to gain knowledge of potentially sensitive
information or to cause a DoS (Denial of Service).
The vulnerability is caused due to lshd leaking the file descriptors
of the random generator's seed file to user shells started by lshd.
This can be exploited by to cause DoS by truncating the seed file or
to gain information of the seed value.
The vulnerability has been reported in version 2.0.1. Prior versions
may also be affected.
SOLUTION:
The vendor has provided a source code patch.
http://lists.lysator.liu.se/pipermail/lsh-bugs/2006q1/000467.html
PROVIDED AND/OR DISCOVERED BY:
The vendor credits Stefan Pfetzing.
ORIGINAL ADVISORY:
http://lists.lysator.liu.se/pipermail/lsh-bugs/2006q1/000467.html
About:
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everybody keeping their systems up to date against the latest
vulnerabilities.
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