VAR-201207-0005
Vulnerability from variot - Updated: 2025-04-11 23:04Buffer overflow in tftp-hpa before 5.1 allows remote attackers to cause a denial of service and possibly execute arbitrary code via the utimeout option. Tftpd-hpa is a feature-enhanced TFTP server. There is a buffer overflow in the function that sets the utimeout option in the tftp-hpa daemon. This vulnerability can be exploited remotely because the program receives options from the client settings. tftp-hpa FTP server is prone to a buffer-overflow vulnerability. An attacker can exploit this issue to execute arbitrary code within the context of the affected application. Failed exploit attempts will result in a denial-of-service condition. Versions prior to tftp-hpa 5.1 are vulnerable. 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.
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/.
Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/ . - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201206-12
http://security.gentoo.org/
Severity: High Title: tftp-hpa: Remote buffer overflow Date: June 21, 2012 Bugs: #374001 ID: 201206-12
Synopsis
A vulnerability was found in tftp-hpa, which leads to remote execution of arbitrary code.
Affected packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-ftp/tftp-hpa < 5.1 >= 5.1
Description
A vulnerability has been discovered in tftp-hpa. Please review the CVE identifier referenced below for details.
Workaround
There is no known workaround at this time.
Resolution
All tftp-hpa users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-ftp/tftp-hpa-5.1"
References
[ 1 ] CVE-2011-2199 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-2199
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-201206-12.xml
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2012 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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