Mandrake alert: xchat update
zen-parse discovered a problem in versions 1.4.2 and 1.4.3 of xchat that could allow a malicious user to send commands to the IRC server they are on which would take advantage of the CTCP PING reply handler in xchat. This could be used for denial of service, channel takeovers, and other similar attacks. The problem exists in 1.6 and 1.8 versions, however it is controlled by the "percascii" variable which defaults to 0. It "percascii" is set to 1, the problem is exploitable. This vulnerability has been fixed upstream in version 1.8.7.
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Mandrake Linux Security Update Advisory
________________________________________________________________________
Package name: xchat
Advisory ID: MDKSA-2002:006
Date: January 17th, 2002
Affected versions: 7.1, 7.2, 8.0, 8.1, Corporate Server 1.0.1
________________________________________________________________________
Problem Description:
zen-parse discovered a problem in versions 1.4.2 and 1.4.3 of xchat
that could allow a malicious user to send commands to the IRC server
they are on which would take advantage of the CTCP PING reply handler
in xchat. This could be used for denial of service, channel takeovers,
and other similar attacks. The problem exists in 1.6 and 1.8 versions,
however it is controlled by the "percascii" variable which defaults to
0. It "percascii" is set to 1, the problem is exploitable. This
vulnerability has been fixed upstream in version 1.8.7.
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References:
________________________________________________________________________
Updated Packages:
Linux-Mandrake 7.1:
27fa0b00644a3d6ebb11b668bf6f1e8e 7.1/RPMS/xchat-1.8.7-1.3mdk.i586.rpm
e65886af7b35ddc185e14df38213c8c4 7.1/SRPMS/xchat-1.8.7-1.3mdk.src.rpm
Linux-Mandrake 7.2:
c014496faa8a5889a00b545612bc66de 7.2/RPMS/xchat-1.8.7-1.2mdk.i586.rpm
c7a219059a88152e634b9cb36a1cee0f 7.2/SRPMS/xchat-1.8.7-1.2mdk.src.rpm
Mandrake Linux 8.0:
54e0b792297002e075a775ff66b47184 8.0/RPMS/xchat-1.8.7-1.1mdk.i586.rpm
6a55c811c3795de0f38c4f3e946edecf 8.0/SRPMS/xchat-1.8.7-1.1mdk.src.rpm
Mandrake Linux 8.0/ppc:
0fb9eb64dc80e07e8ddb25bad8adb8fc ppc/8.0/RPMS/xchat-1.8.7-1.1mdk.ppc.rpm
6a55c811c3795de0f38c4f3e946edecf ppc/8.0/SRPMS/xchat-1.8.7-1.1mdk.src.rpm
Mandrake Linux 8.1:
d9c2e6756586964aceceb3b23fd0bb38 8.1/RPMS/xchat-1.8.7-1.1mdk.i586.rpm
6a55c811c3795de0f38c4f3e946edecf 8.1/SRPMS/xchat-1.8.7-1.1mdk.src.rpm
Mandrake Linux 8.1/ia64:
b96628062c40d86765ef77fa051fcb86 ia64/8.1/RPMS/xchat-1.8.7-1.1mdk.ia64.rpm
6a55c811c3795de0f38c4f3e946edecf ia64/8.1/SRPMS/xchat-1.8.7-1.1mdk.src.rpm
Corporate Server 1.0.1:
27fa0b00644a3d6ebb11b668bf6f1e8e 1.0.1/RPMS/xchat-1.8.7-1.3mdk.i586.rpm
e65886af7b35ddc185e14df38213c8c4 1.0.1/SRPMS/xchat-1.8.7-1.3mdk.src.rpm
________________________________________________________________________
Bug IDs fixed (see https://qa.mandrakesoft.com for more information):
________________________________________________________________________
To upgrade automatically, use MandrakeUpdate. The verification of md5
checksums and GPG signatures is performed automatically for you.
If you want to upgrade manually, download the updated package from one
of our FTP server mirrors and upgrade with "rpm -Fvh *.rpm". A list of
FTP mirrors can be obtained from:
http://www.mandrakesecure.net/en/ftp.php
Please verify the update prior to upgrading to ensure the integrity of
the downloaded package. You can do this with the command:
rpm --checksig <filename>
All packages are signed by MandrakeSoft for security. You can obtain
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https://www.mandrakesecure.net/RPM-GPG-KEYS
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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