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nfs-server "rpc.mountd" Buffer Overflow Vulnerability
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Secunia Advisory:
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SA18614
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Release Date:
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2006-01-27
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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 local network
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Solution Status:
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Unpatched
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| Software: | nfs-server 2.x
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| | CVE reference: | CVE-2006-0043 (Secunia mirror)
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This advisory is currently marked as unpatched!
- Companies can be alerted when a patch is released! |
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Description:
A vulnerability has been reported in nfs-server, which can be exploited by malicious users to compromise a vulnerable system.
The vulnerability is caused due to a boundary error in the "realpath()" function used by rpc.mountd. This can be exploit to cause a buffer overflow when processing mount requests.
Successful exploitation allows arbitrary code execution with root privileges but requires the ability to create symlinks on any of the file systems on the machine running rpc.mountd. The vulnerability may also be exploitable by users without filesystem access.
Solution:
Restrict access to trusted users only.
Some Linux vendors have issued updated packages.
Provided and/or discovered by:
Reported in a SUSE advisory.
Original Advisory:
http://lists.suse.com/archive/suse-security-announce/2006-Jan/0007.html
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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