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Gentoo Linux Security Advisory GLSA 200910-02 |
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http://security.gentoo.org/ |
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Severity: High |
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Title: Pidgin: Multiple vulnerabilities |
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Date: October 22, 2009 |
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Bugs: #276000, #281545, #283324 |
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ID: 200910-02 |
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Synopsis |
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======== |
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|
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Multiple vulnerabilities have been discovered in Pidgin, leading to the |
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remote execution of arbitrary code, unauthorized information |
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disclosure, or Denial of Service. |
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|
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Background |
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========== |
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|
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Pidgin is a client for a variety of instant messaging protocols. |
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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 < 2.5.9-r1 >= 2.5.9-r1 |
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|
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Description |
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=========== |
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|
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Multiple vulnerabilities were found in Pidgin: |
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|
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* Yuriy Kaminskiy reported that the OSCAR protocol implementation in |
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Pidgin misinterprets the ICQWebMessage message type as the ICQSMS |
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message type, triggering an allocation of a large amount of memory |
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(CVE-2009-1889). |
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|
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* Federico Muttis of Core Security Technologies reported that the |
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msn_slplink_process_msg() function in |
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libpurple/protocols/msn/slplink.c in libpurple as used in Pidgin |
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doesn't properly process incoming SLP messages, triggering an |
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overwrite of an arbitrary memory location (CVE-2009-2694). NOTE: This |
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issue reportedly exists because of an incomplete fix for |
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CVE-2009-1376 (GLSA 200905-07). |
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|
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* bugdave reported that protocols/jabber/auth.c in libpurple as used |
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in Pidgin does not follow the "require TSL/SSL" preference when |
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connecting to older Jabber servers that do not follow the XMPP |
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specification, resulting in a connection to the server without the |
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expected encryption (CVE-2009-3026). |
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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 SLP (via MSN) or ICQ web |
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messages, possibly leading to execution of arbitrary code with the |
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privileges of the user running Pidgin, unauthorized information |
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disclosure, or a Denial of Service. |
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|
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Workaround |
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========== |
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There is no known workaround at this time. |
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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-2.5.9-r1 |
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References |
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========== |
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[ 1 ] CVE-2009-1376 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1376 |
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[ 2 ] CVE-2009-1889 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1889 |
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[ 3 ] CVE-2009-2694 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2694 |
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[ 4 ] CVE-2009-3026 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3026 |
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[ 5 ] GLSA 200905-07 |
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http://www.gentoo.org/security/en/glsa/glsa-200905-07.xml |
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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-200910-02.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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https://bugs.gentoo.org. |
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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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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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