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[ GLSA 200910-02 ] Pidgin: Multiple vulnerabilities
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GLSA
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PostPosted: Thu Oct 22, 2009 8:26 pm    Post subject: [ GLSA 200910-02 ] Pidgin: Multiple vulnerabilities Reply with quote

Gentoo Linux Security Advisory

Title: Pidgin: Multiple vulnerabilities (GLSA 200910-02)
Severity: high
Exploitable: remote
Date: October 22, 2009
Bug(s): #276000, #281545, #283324
ID: 200910-02

Synopsis


Multiple vulnerabilities have been discovered in Pidgin, leading to the
remote execution of arbitrary code, unauthorized information disclosure, or
Denial of Service.


Background


Pidgin is a client for a variety of instant messaging protocols.


Affected Packages

Package: net-im/pidgin
Vulnerable: < 2.5.9-r1
Unaffected: >= 2.5.9-r1
Architectures: All supported architectures


Description


Multiple vulnerabilities were found in Pidgin:
  • Yuriy
    Kaminskiy reported that the OSCAR protocol implementation in Pidgin
    misinterprets the ICQWebMessage message type as the ICQSMS message
    type, triggering an allocation of a large amount of memory
    (CVE-2009-1889).
  • Federico Muttis of Core Security Technologies
    reported that the msn_slplink_process_msg() function in
    libpurple/protocols/msn/slplink.c in libpurple as used in Pidgin
    doesn't properly process incoming SLP messages, triggering an overwrite
    of an arbitrary memory location (CVE-2009-2694). NOTE: This issue
    reportedly exists because of an incomplete fix for CVE-2009-1376 (GLSA
    200905-07).
  • bugdave reported that protocols/jabber/auth.c in
    libpurple as used in Pidgin does not follow the "require TSL/SSL"
    preference when connecting to older Jabber servers that do not follow
    the XMPP specification, resulting in a connection to the server without
    the expected encryption (CVE-2009-3026).


Impact


A remote attacker could send specially crafted SLP (via MSN) or ICQ web
messages, possibly leading to execution of arbitrary code with the
privileges of the user running Pidgin, unauthorized information
disclosure, or a Denial of Service.


Workaround


There is no known workaround at this time.


Resolution


All Pidgin users should upgrade to the latest version:
Code:
# emerge --sync
    # emerge --ask --oneshot --verbose ">=net-im/pidgin-2.5.9-r1"


References

CVE-2009-1376
CVE-2009-1889
CVE-2009-2694
CVE-2009-3026
GLSA 200905-07


Last edited by GLSA on Mon Jun 10, 2013 4:30 am; edited 2 times in total
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