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Gentoo Linux Security Advisory GLSA 200901-13 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: Pidgin: Multiple vulnerabilities |
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Date: January 20, 2009 |
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Bugs: #230045, #234135 |
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ID: 200901-13 |
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Synopsis |
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======== |
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|
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Multiple vulnerabilities have been discovered in Pidgin, allowing for |
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remote arbitrary code execution, Denial of Service and service |
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spoofing. |
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|
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Background |
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========== |
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|
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Pidgin (formerly Gaim) is an instant messaging client for a variety of |
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instant messaging protocols. It is based on the libpurple instant |
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messaging library. |
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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-im/pidgin < 2.5.1 >= 2.5.1 |
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|
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Description |
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=========== |
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|
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Multiple vulnerabilities have been discovered in Pidgin and the |
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libpurple library: |
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|
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* A participant to the TippingPoint ZDI reported multiple integer |
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overflows in the msn_slplink_process_msg() function in the MSN |
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protocol implementation (CVE-2008-2927). |
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|
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* Juan Pablo Lopez Yacubian is credited for reporting a |
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use-after-free flaw in msn_slplink_process_msg() in the MSN protocol |
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implementation (CVE-2008-2955). |
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|
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* The included UPnP server does not limit the size of data to be |
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downloaded for UPnP service discovery, according to a report by |
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Andrew Hunt and Christian Grothoff (CVE-2008-2957). |
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|
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* Josh Triplett discovered that the NSS plugin for libpurple does not |
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properly verify SSL certificates (CVE-2008-3532). |
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|
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Impact |
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====== |
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|
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A remote attacker could send specially crafted messages or files using |
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the MSN protocol which could result in the execution of arbitrary code |
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or crash Pidgin. NOTE: Successful exploitation might require the |
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victim's interaction. Furthermore, an attacker could conduct |
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man-in-the-middle attacks to obtain sensitive information using bad |
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certificates and cause memory and disk resources to exhaust. |
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|
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Workaround |
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========== |
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|
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There is no known workaround at this time. |
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|
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Resolution |
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========== |
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All Pidgin users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=net-im/pidgin-2.5.1" |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2008-2927 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2927 |
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[ 2 ] CVE-2008-2955 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2955 |
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[ 3 ] CVE-2008-2957 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2957 |
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[ 4 ] CVE-2008-3532 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3532 |
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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-200901-13.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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|
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License |
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======= |
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Copyright 2009 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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|
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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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|
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http://creativecommons.org/licenses/by-sa/2.5 |
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