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Category:   Application (Instant Messaging/IRC/Chat)  >   Gaim Vendors:   Gaim.sourceforge.net
(Mandrake Issues Fix) Gaim Contains Multiple Overflows That Let a Remote User Execute Arbitrary Code
SecurityTracker Alert ID:  1008895
SecurityTracker URL:  http://securitytracker.com/id/1008895
CVE Reference:   CAN-2004-0006, CAN-2004-0007, CAN-2004-0008   (Links to External Site)
Date:  Jan 31 2004
Impact:   Denial of service via network, Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 0.75 and prior versions
Description:   Multiple vulnerabilities were reported in Gaim. A remote user can execute arbitrary code on the target user's system.

Stefan Esser of e-matters GmbH reported 12 vulnerabilities, including stack overflows, heap overflows, and an integer overflow. Some of the vulnerabilities require a man-in-the-middle attack to exploit.

Several of the vulnerabilities were due to buffer overflows in the processing of Yahoo! Messenger protocol.

An integer overflow was reported in the processing of the AIM/Oscar protocol.

A variety of other protocols and functions also contain overflows.

It is reported that two buffer overflows reside in the decoding of octal values in the yahoo_decode() function in
'gaim/src/protocols/yahoo/yahoo.c' [CVE: CAN-2004-0005]. Only version 0.75 is affected.

A remote server can send an HTTP reply header with specially crafted cookie values to trigger an overflow in 'gaim/src/protocols/yahoo/yahoo.c' in the yahoo_web_pending() function [CVE: CAN-2004-0006].

Two buffer overflows in yahoo_login_page_hash() can be triggered by specially crafted values in the Yahoo! login webpage [CVE: CAN-2004-0006].

A remote user can send a Yahoo! Messenger packet containing a specially crafted keyname value to the target server via the Yahoo! server to execute arbitrary code on the target system [CVE: CAN-2004-0006]. The flaw reportedly resides in the yahoo_packet_read() function in 'gaim/src/protocols/yahoo/yahoo.c'.

It is reported that a malicious AIM/Oscar directIM packet can trigger an overflow in the handlehdr_odc() function in 'gaim/src/protocols/oscar/ft.c' [CVE: CAN-2004-0008]. Versions 0.74 and prior are affected.

Two vulnerabilites were reported in the MIME decoding functions of quotedp_decode() in 'gaim/src/util.c' [CVE: CAN-2004-0005]. Only version 0.75 is affected.

The gaim_url_parse() function in 'gaim/src/util.c' reportedly splits URLs into fixed sized buffers [CVE: CAN-2004-0006].

The gaim_markup_extract_info_field() function in 'gaim/src/util.c' contains a stack overflow in several locations [CVE: CAN-2004-0007]. Versions 0.74 and earlier are affected.

A remote user acting as an HTTP proxy server can trigger an overflow in a connected Gaim client when the client is configured to use an HTTP proxy [CVE: CAN-2004-0006]. The flaw resides in the http_canread() function in 'gaim/src/proxy.c'.

The vendor was initially notified regarding the first of the bugs on January 4, 2004.

The original advisory is available at:

http://security.e-matters.de/advisories/012004.html
Impact:   A remote user can execute arbitrary code on the target system. In some of the vulnerabilities, the remote user must be operating as a malicious server. In some cases, the remote user must invoke a man-in-the-middle attack. In one case, a remote user can simply send a message via the Yahoo! server.
Solution:   Mandrake has released a fix.

Mandrake Linux 9.1:
fcae01eb900d0da97de864d4d3c0482c 9.1/RPMS/gaim-0.75-1.2.91mdk.i586.rpm
cf42dd624781591d2ad000dfe2316c34 9.1/RPMS/gaim-encrypt-0.75-1.2.91mdk.i586.rpm
ae4fbb504df617ae1831c6d4e315c07e 9.1/RPMS/libgaim-remote0-0.75-1.2.91mdk.i586.rpm
efda8611e8ebbaf897511538178a4dce 9.1/RPMS/libgaim-remote0-devel-0.75-1.2.91mdk.i586.rpm
d70c959f5dfb21a1355f4c8c4c1a9018 9.1/SRPMS/gaim-0.75-1.2.91mdk.src.rpm

Mandrake Linux 9.1/PPC:
be6bf22cc2bfe056da2acd3bf7a19f48 ppc/9.1/RPMS/gaim-0.75-1.2.91mdk.ppc.rpm
103fe023dff77df22dd2c2a3083e66f6 ppc/9.1/RPMS/gaim-encrypt-0.75-1.2.91mdk.ppc.rpm
8a9b6a6dbaad9bec07ed577b702076e6 ppc/9.1/RPMS/libgaim-remote0-0.75-1.2.91mdk.ppc.rpm
e4f419c95f34faf0404ac1ad9766b0c1 ppc/9.1/RPMS/libgaim-remote0-devel-0.75-1.2.91mdk.ppc.rpm
d70c959f5dfb21a1355f4c8c4c1a9018 ppc/9.1/SRPMS/gaim-0.75-1.2.91mdk.src.rpm

Mandrake Linux 9.2:
69257661346be059e107541518218a4a 9.2/RPMS/gaim-0.75-1.2.92mdk.i586.rpm
3515ecf21184675e408efea850f52496 9.2/RPMS/gaim-encrypt-0.75-1.2.92mdk.i586.rpm
cd7f6cbbc51c067acf47627205c4dec0 9.2/RPMS/gaim-festival-0.75-1.2.92mdk.i586.rpm
b447c9bfc57094fc5dd6975081116206 9.2/RPMS/gaim-perl-0.75-1.2.92mdk.i586.rpm
1cdfc07985459450bd975200e28187e9 9.2/RPMS/libgaim-remote0-0.75-1.2.92mdk.i586.rpm
89148396ca8ff99fd9506c3b11a7a234 9.2/RPMS/libgaim-remote0-devel-0.75-1.2.92mdk.i586.rpm
c39243dd385df5cfae216ff267c49b47 9.2/SRPMS/gaim-0.75-1.2.92mdk.src.rpm

Mandrake Linux 9.2/AMD64:
1e46400d80751bba2e517503c38974ff amd64/9.2/RPMS/gaim-0.75-1.2.92mdk.amd64.rpm
64f2b908bf9be92b5a4fa6fd117367c3 amd64/9.2/RPMS/gaim-encrypt-0.75-1.2.92mdk.amd64.rpm
d9ec141a067d8835c33f1d82c236f35c amd64/9.2/RPMS/gaim-festival-0.75-1.2.92mdk.amd64.rpm
fba788fcbe677074e0899ebbe017c162 amd64/9.2/RPMS/gaim-perl-0.75-1.2.92mdk.amd64.rpm
e32bf874739ead51ff3a9b247a7f1003 amd64/9.2/RPMS/lib64gaim-remote0-0.75-1.2.92mdk.amd64.rpm
50337da8cf32c26f7faf020d3fb46b77 amd64/9.2/RPMS/lib64gaim-remote0-devel-0.75-1.2.92mdk.amd64.rpm
c39243dd385df5cfae216ff267c49b47 amd64/9.2/SRPMS/gaim-0.75-1.2.92mdk.src.rpm
Vendor URL:  gaim.sourceforge.net/ (Links to External Site)
Cause:   Boundary error
Underlying OS:   Linux (Mandriva/Mandrake)

Message History:   This archive entry is a follow-up to the message listed below.
Jan 26 2004 Gaim Contains Multiple Overflows That Let a Remote User Execute Arbitrary Code


 Source Message Contents
Date:  30 Jan 2004 21:41:31 -0000
Subject:  MDKSA-2004:006-1 - Updated gaim packages fix multiple vulnerabilities


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

 _______________________________________________________________________

                Mandrake Linux Security Update Advisory
 _______________________________________________________________________

 Package name:           gaim
 Advisory ID:            MDKSA-2004:006-1
 Date:                   January 30th, 2004
 Original Advisory Date: January 26th, 2004
 Affected versions:	 9.1, 9.2
 ______________________________________________________________________

 Problem Description:

 A number of vulnerabilities were discovered in the gaim instant
 messenger program by Steffan Esser, versions 0.75 and earlier.
 Thanks to Jacques A. Vidrine for providing initial patches.
 
 Multiple buffer overflows exist in gaim 0.75 and earlier:  When
 parsing cookies in a Yahoo web connection; YMSG protocol overflows
 parsing the Yahoo login webpage; a YMSG packet overflow; flaws in
 the URL parser; and flaws in the HTTP Proxy connect (CAN-2004-006).
 
 A buffer overflow in gaim 0.74 and earlier in the Extract Info Field
 Function used for MSN and YMSG protocol handlers (CAN-2004-007).
 
 An integer overflow in gaim 0.74 and earlier, when allocating memory
 for a directIM packet results in a heap overflow (CAN-2004-0008).
  
Update:

 The patch used to correct the problem was slightly malformed and
 could cause an infinite loop and crash with the Yahoo protocol.
 The new packages have a corrected patch that resolves the problem.
 _______________________________________________________________________

 References:

  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0006
  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0007
  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0008
 ______________________________________________________________________

 Updated Packages:
  
 Mandrake Linux 9.1:
 fcae01eb900d0da97de864d4d3c0482c  9.1/RPMS/gaim-0.75-1.2.91mdk.i586.rpm
 cf42dd624781591d2ad000dfe2316c34  9.1/RPMS/gaim-encrypt-0.75-1.2.91mdk.i586.rpm
 ae4fbb504df617ae1831c6d4e315c07e  9.1/RPMS/libgaim-remote0-0.75-1.2.91mdk.i586.rpm
 efda8611e8ebbaf897511538178a4dce  9.1/RPMS/libgaim-remote0-devel-0.75-1.2.91mdk.i586.rpm
 d70c959f5dfb21a1355f4c8c4c1a9018  9.1/SRPMS/gaim-0.75-1.2.91mdk.src.rpm

 Mandrake Linux 9.1/PPC:
 be6bf22cc2bfe056da2acd3bf7a19f48  ppc/9.1/RPMS/gaim-0.75-1.2.91mdk.ppc.rpm
 103fe023dff77df22dd2c2a3083e66f6  ppc/9.1/RPMS/gaim-encrypt-0.75-1.2.91mdk.ppc.rpm
 8a9b6a6dbaad9bec07ed577b702076e6  ppc/9.1/RPMS/libgaim-remote0-0.75-1.2.91mdk.ppc.rpm
 e4f419c95f34faf0404ac1ad9766b0c1  ppc/9.1/RPMS/libgaim-remote0-devel-0.75-1.2.91mdk.ppc.rpm
 d70c959f5dfb21a1355f4c8c4c1a9018  ppc/9.1/SRPMS/gaim-0.75-1.2.91mdk.src.rpm

 Mandrake Linux 9.2:
 69257661346be059e107541518218a4a  9.2/RPMS/gaim-0.75-1.2.92mdk.i586.rpm
 3515ecf21184675e408efea850f52496  9.2/RPMS/gaim-encrypt-0.75-1.2.92mdk.i586.rpm
 cd7f6cbbc51c067acf47627205c4dec0  9.2/RPMS/gaim-festival-0.75-1.2.92mdk.i586.rpm
 b447c9bfc57094fc5dd6975081116206  9.2/RPMS/gaim-perl-0.75-1.2.92mdk.i586.rpm
 1cdfc07985459450bd975200e28187e9  9.2/RPMS/libgaim-remote0-0.75-1.2.92mdk.i586.rpm
 89148396ca8ff99fd9506c3b11a7a234  9.2/RPMS/libgaim-remote0-devel-0.75-1.2.92mdk.i586.rpm
 c39243dd385df5cfae216ff267c49b47  9.2/SRPMS/gaim-0.75-1.2.92mdk.src.rpm

 Mandrake Linux 9.2/AMD64:
 1e46400d80751bba2e517503c38974ff  amd64/9.2/RPMS/gaim-0.75-1.2.92mdk.amd64.rpm
 64f2b908bf9be92b5a4fa6fd117367c3  amd64/9.2/RPMS/gaim-encrypt-0.75-1.2.92mdk.amd64.rpm
 d9ec141a067d8835c33f1d82c236f35c  amd64/9.2/RPMS/gaim-festival-0.75-1.2.92mdk.amd64.rpm
 fba788fcbe677074e0899ebbe017c162  amd64/9.2/RPMS/gaim-perl-0.75-1.2.92mdk.amd64.rpm
 e32bf874739ead51ff3a9b247a7f1003  amd64/9.2/RPMS/lib64gaim-remote0-0.75-1.2.92mdk.amd64.rpm
 50337da8cf32c26f7faf020d3fb46b77  amd64/9.2/RPMS/lib64gaim-remote0-devel-0.75-1.2.92mdk.amd64.rpm
 c39243dd385df5cfae216ff267c49b47  amd64/9.2/SRPMS/gaim-0.75-1.2.92mdk.src.rpm
 _______________________________________________________________________

 To upgrade automatically use MandrakeUpdate or urpmi.  The verification
 of md5 checksums and GPG signatures is performed automatically for you.

 A list of FTP mirrors can be obtained from:

  http://www.mandrakesecure.net/en/ftp.php

 All packages are signed by MandrakeSoft for security.  You can obtain
 the GPG public key of the Mandrake Linux Security Team by executing:

  gpg --recv-keys --keyserver www.mandrakesecure.net 0x22458A98

 Please be aware that sometimes it takes the mirrors a few hours to
 update.

 You can view other update advisories for Mandrake Linux at:

  http://www.mandrakesecure.net/en/advisories/

 MandrakeSoft has several security-related mailing list services that
 anyone can subscribe to.  Information on these lists can be obtained by
 visiting:

  http://www.mandrakesecure.net/en/mlist.php

 If you want to report vulnerabilities, please contact

  security_linux-mandrake.com

 Type Bits/KeyID     Date       User ID
 pub  1024D/22458A98 2000-07-10 Linux Mandrake Security Team
  <security linux-mandrake.com>
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