drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Pufferüberlauf in proxytunnel
Name: |
Pufferüberlauf in proxytunnel
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ID: |
200411-07 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Do, 4. November 2004, 12:00 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0992
http://proxytunnel.sourceforge.net/news.html |
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Applikationen: |
Proxytunnel |
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Originalnachricht |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200411-07 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: Proxytunnel: Format string vulnerability Date: November 03, 2004 Bugs: #69379 ID: 200411-07
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Synopsis ========
Proxytunnel is vulnerable to a format string vulnerability, potentially allowing a remote server to execute arbitrary code with the rights of the Proxytunnel process.
Background ==========
Proxytunnel is a program that tunnels connections to a remote server through a standard HTTPS proxy.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/proxytunnel < 1.2.3 >= 1.2.3
Description ===========
Florian Schilhabel of the Gentoo Linux Security Audit project found a format string vulnerability in Proxytunnel. When the program is started in daemon mode (-a [port]), it improperly logs invalid proxy answers to syslog.
Impact ======
A malicious remote server could send specially-crafted invalid answers to exploit the format string vulnerability, potentially allowing the execution of arbitrary code on the tunnelling host with the rights of the Proxytunnel process.
Workaround ==========
You can mitigate the issue by only allowing connections to trusted remote servers.
Resolution ==========
All Proxytunnel users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/proxytunnel-1.2.3"
References ==========
[ 1 ] CAN-2004-0992 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0992 [ 2 ] Proxytunnel News http://proxytunnel.sourceforge.net/news.html
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200411-07.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 http://bugs.gentoo.org.
License =======
Copyright 2004 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/1.0
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