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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.

Home >> Browse Vulnerability Assessment Database >> Denial of Service >> Network Block Device Server Buffer Overflow Vulnerability

Vulnerability Assessment Details

Network Block Device Server Buffer Overflow Vulnerability

Vulnerability Assessment Summary
Checks for a buffer overflow vulnerability in a Network Block Device server

Detailed Explanation for this Vulnerability Assessment

Summary :

The remote service is affected by a buffer overflow vulnerability.

Description :

The version of the Network Block Device (NBD) server installed on the
remote host does not properly check the size of read requests before
filling a dynamically-allocated buffer. Using a specially-crafted
read request, a possible hacker can overwrite this buffer, which may crash
the affected server or permit for the execution of arbitrary code.

See also :

http://sourceforge.net/mailarchive/forum.php?thread_id=9201144&forum_id=40388
http://sourceforge.net/project/shownotes.php?release_id=380202&group_id=13229

Solution :

Upgrade to NBD 2.8.3 or later.

Network Security Threat Level:

High / CVSS Base Score : 7.0
(AV:R/AC:L/Au:NR/C:P/I:P/A:P/B:N)

Networks Security ID: 16029

Vulnerability Assessment Copyright: This script is Copyright (C) 2005 Tenable Network Security

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