drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Pufferüberlauf in l2tpd
Name: |
Pufferüberlauf in l2tpd
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ID: |
200407-17 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Do, 22. Juli 2004, 13:00 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0649
http://seclists.org/lists/fulldisclosure/2004/Jun/0094.html |
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Applikationen: |
l2tpd |
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Originalnachricht |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200407-17 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: High Title: l2tpd: Buffer overflow Date: July 22, 2004 Bugs: #53009 ID: 200407-17
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Synopsis ========
A buffer overflow in l2tpd could lead to remote code execution. It is not known whether this bug is exploitable.
Background ==========
l2tpd is a GPL implentation of the Layer 2 Tunneling Protocol.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-dialup/l2tpd < 0.69-r2 >= 0.69-r2
Description ===========
Thomas Walpuski discovered a buffer overflow that may be exploitable by sending a specially crafted packet. In order to exploit the vulnerable code, an attacker would need to fake the establishment of an L2TP tunnel.
Impact ======
A remote attacker may be able to execute arbitrary code with the privileges of the user running l2tpd.
Workaround ==========
There is no known workaround for this vulnerability.
Resolution ==========
All users are recommended to upgrade to the latest stable version:
# emerge sync
# emerge -pv ">=net-l2tpd-0.69-r2" # emerge ">=net-l2tpd-0.69-r2"
References ==========
[ 1 ] CAN-2004-0649 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0649 [ 2 ] Full Disclosure Report http://seclists.org/lists/fulldisclosure/2004/Jun/0094.html
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200407-17.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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