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tftp-hpa Daemon Buffer Overflow

tftp-hpa Daemon Buffer Overflow
Posted Jun 24, 2011
Authored by Timo Warns | Site pre-cert.de

PRE-CERT Security Advisory - The tftp-hpa daemon contains a buffer overflow vulnerability in the function for setting the utimeout option. As the daemon accepts the option from clients, the vulnerability can be remotely exploited. Versions 0.30 through 5.0 are affected.

tags | advisory, overflow
advisories | CVE-2011-2199
SHA-256 | 0a46a4e113dabe89a5380ccddb1dda0c299749eccc3f07ddbd3134e705cf6484

tftp-hpa Daemon Buffer Overflow

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PRE-CERT Security Advisory
==========================

* Advisory: PRE-SA-2011-05
* Released on: 22 Jun 2011
* Last updated on: 22 Jun 2011
* Affected product: tftp-hpa 0.30 - 5.0
* Impact: buffer overflow
* Origin: remote tftp client
* Credit: Timo Warns (PRESENSE Technologies GmbH)
* CVE Identifier: CVE-2011-2199


Summary
-------

The tftp-hpa daemon contains a buffer overflow vulnerability in the
function for setting the utimeout option. As the daemon accepts the
option from clients, the vulnerability can be remotely exploited.


Solution
--------

For a patch, see
http://git.kernel.org/?p=network/tftp/tftp-hpa.git;a=commitdiff;h=f3035c45bc50bb5cac87ca01e7ef6a12485184f8


References
----------

When further information becomes available, this advisory will be
updated. The most recent version of this advisory is available at:

http://www.pre-cert.de/advisories/PRE-SA-2011-05.txt


Contact
-------

PRE-CERT can be reached under precert@pre-secure.de. For PGP
key information, refer to http://www.pre-cert.de/.

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