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Gentoo Linux Security Advisory GLSA 200406-13 |
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http://security.gentoo.org/ |
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Severity: High |
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Title: Squid: NTLM authentication helper buffer overflow |
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Date: June 17, 2004 |
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Bugs: #53367 |
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ID: 200406-13 |
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Synopsis |
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======== |
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|
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Squid contains a bug where it fails to properly check bounds of the |
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'pass' variable. |
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Background |
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========== |
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|
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Squid contains a bug in the function ntlm_check_auth(). It fails to do |
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proper bounds checking on the values copyied to the 'pass' variable. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 net-www/squid <= 2.5.5-r1 >= 2.5.5-r2 |
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Description |
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=========== |
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|
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Squid is a full-featured Web Proxy Cache designed to run on Unix |
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systems. It supports proxying and caching of HTTP, FTP, and other URLs, |
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as well as SSL support, cache hierarchies, transparent caching, access |
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control lists and many other features. |
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|
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Impact |
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====== |
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|
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If Squid is configured to use NTLM authentication, an attacker could |
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exploit this vulnerability by sending a very long password. This could |
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lead to arbitrary code execution with the permissions of the user |
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running Squid. |
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Workaround |
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========== |
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There is no known workaround at this time. All users are encouraged to |
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upgrade to the latest available version. |
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Resolution |
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========== |
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All Squid users should upgrade to the latest stable version: |
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# emerge sync |
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# emerge -pv ">=net-www/squid-2.5.5-r2" |
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# emerge ">=net-www/squid-2.5.5-r2" |
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|
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References |
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========== |
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|
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[ 1 ] CAN-2004-0541 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0541 |
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|
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Availability |
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============ |
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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http://security.gentoo.org/glsa/glsa-200406-13.xml |
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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http://bugs.gentoo.org. |
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License |
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======= |
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Copyright 2004 Gentoo Technologies, Inc; referenced text |
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belongs to its owner(s). |
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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http://creativecommons.org/licenses/by-sa/1.0 |
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