From security@LINUX-MANDRAKE.COM Wed Aug 30 20:35:45 2000 From: Linux Mandrake Security Team To: BUGTRAQ@SECURITYFOCUS.COM Date: Tue, 29 Aug 2000 09:45:37 -0600 Subject: [BUGTRAQ] MDKSA-2000:039-1 - xchat update [The following text is in the "iso-8859-1" character set] [Your display is set for the "US-ASCII" character set] [Some characters may be displayed incorrectly] -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ________________________________________________________________________ Linux-Mandrake Security Update Advisory ________________________________________________________________________ Package name: xchat Date: August 28th, 2000 Original Advisory Date: August 24th, 2000 Advisory ID: MDKSA-2000:039-1 Affected versions: 7.0, 7.1 ________________________________________________________________________ Problem Description: XChat 1.3.9 and later allow users to right-click on a URL appearing in an IRC discussion and select the "Open in Browser" option. To open the URL in a browser, XChat passes the command to /bin/sh. This allows a malicious URL the ability to execute arbitrary shell commands as the user that is running XChat. This update changes the functionality of XChat to bypass the shell and execute the browser directly. Thanks go to Red Hat for providing the patch. Update: XChat 1.2.1 is vulnerable as well, so an update for 7.0 is now available. ________________________________________________________________________ Please verify these md5 checksums of the updates prior to upgrading to ensure the integrity of the downloaded package. You can do this by running the md5sum program on the downloaded package by using "md5sum package.rpm". Linux-Mandrake 7.0: ebf0d4a0d236453f63a797ea20f0758b 7.0/RPMS/xchat-1.4.1-4mdk.i586.rpm d695396fb97a55c6c7e2cdbb22079c00 7.0/SRPMS/xchat-1.4.1-4mdk.src.rpm Linux-Mandrake 7.1: ebf0d4a0d236453f63a797ea20f0758b 7.1/RPMS/xchat-1.4.1-4mdk.i586.rpm d695396fb97a55c6c7e2cdbb22079c00 7.1/SRPMS/xchat-1.4.1-4mdk.src.rpm ________________________________________________________________________ To upgrade automatically, use « MandrakeUpdate ». If you want to upgrade manually, download the updated package from one of our FTP server mirrors and uprade with "rpm -Uvh package_name". You can download the updates directly from: ftp://ftp.linux.tucows.com/pub/distributions/Mandrake/Mandrake/updates ftp://ftp.free.fr/pub/Distributions_Linux/Mandrake/updates Or try one of the other mirrors listed at: http://www.linux-mandrake.com/en/ftp.php3. Updated packages are available in the "updates/[ver]/RPMS/" directory. For example, if you are looking for an updated RPM package for Linux-Mandrake 7.1, look for it in "updates/7.1/RPMS/". Updated source RPMs are available as well, but you generally do not need to download them. Please be aware that sometimes it takes the mirrors a few hours to update, so if you want an immediate upgrade, please use one of the two above-listed mirrors. You can view other security advisories for Linux-Mandrake at: http://www.linux-mandrake.com/en/fupdates.php3 If you want to report vulnerabilities, please contact security@linux-mandrake.com ________________________________________________________________________ Linux-Mandrake has two security-related mailing list services that anyone can subscribe to: security-announce@linux-mandrake.com Linux-Mandrake's security announcements mailing list. Only announcements are sent to this list and it is read-only. security-discuss@linux-mandrake.com Linux-Mandrake's security discussion mailing list. This list is open to anyone to discuss Linux-Mandrake security specifically and Linux security in general. To subscribe to either list, send a message to sympa@linux-mandrake.com with "subscribe [listname]" in the body of the message. To remove yourself from either list, send a message to sympa@linux-mandrake.com with "unsubscribe [listname]" in the body of the message. To get more information on either list, send a message to sympa@linux-mandrake.com with "info [listname]" in the body of the message. Optionally, you can use the web interface to subscribe to or unsubscribe from either list: http://www.linux-mandrake.com/en/flists.php3#security ________________________________________________________________________ Type Bits/KeyID Date User ID pub 1024D/22458A98 2000-07-10 Linux Mandrake Security Team - -----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.0.1 (GNU/Linux) Comment: For info see http://www.gnupg.org mQGiBDlp594RBAC2tDozI3ZgQsE7XwxurJCJrX0L5vx7SDByR5GHDdWekGhdiday L4nfUax+SeR9SCoCgTgPW1xB8vtQc8/sinJlMjp9197a2iKM0FOcPlkpa3HcOdt7 WKJqQhlMrHvRcsivzcgqjH44GBBJIT6sygUF8k0lU6YnMHj5MPc/NGWt8wCg9vKo P0l5QVAFSsHtqcU9W8cc7wMEAJzQsAlnvPXDBfBLEH6u7ptWFdp0GvbSuG2wRaPl hynHvRiE01ZvwbJZXsPsKm1z7uVoW+NknKLunWKB5axrNXDHxCYJBzY3jTeFjsqx PFZkIEAQphLTkeXXelAjQ5u9tEshPswEtMvJvUgNiAfbzHfPYmq8D6x5xOw1IySg 2e/LBACxr2UJYCCB2BZ3p508mAB0RpuLGukq+7UWiOizy+kSskIBg2O7sQkVY/Cs iyGEo4XvXqZFMY39RBdfm2GY+WB/5NFiTOYJRKjfprP6K1YbtsmctsX8dG+foKsD LLFs7OuVfaydLQYp1iiN6D+LJDSMPM8/LCWzZsgr9EKJ8NXiyrQ6TGludXggTWFu ZHJha2UgU2VjdXJpdHkgVGVhbSA8c2VjdXJpdHlAbGludXgtbWFuZHJha2UuY29t PohWBBMRAgAWBQI5aefeBAsKBAMDFQMCAxYCAQIXgAAKCRCaqNDQIkWKmK6LAKCy /NInDsaMSI+WHwrquwC5PZrcnQCeI+v3gUDsNfQfiKBvQSANu1hdulq5AQ0EOWnn 7xAEAOQlTVY4TiNo5V/iP0J1xnqjqlqZsU7yEBKo/gZz6/+hx75RURe1ebiJ9F77 9FQbpJ9Epz1KLSXvq974rnVb813zuGdmgFyk+ryA/rTR2RQ8h+EoNkwmATzRxBXV Jb57fFQjxOu4eNjZAtfII/YXb0uyXXrdr5dlJ/3eXrcO4p0XAAMFBACCxo6Z269s +A4v8C6Ui12aarOQcCDlV8cVG9LkyatU3FNTlnasqwo6EkaP572448weJWwN6SCX Vl+xOYLiK0hL/6Jb/O9Agw75yUVdk+RMM2I4fNEi+y4hmfMh2siBv8yEkEvZjTcl 3TpkTfzYky85tu433wmKaLFOv0WjBFSikohGBBgRAgAGBQI5aefvAAoJEJqo0NAi RYqYid0AoJgeWzXrEdIClBOSW5Q6FzqJJyaqAKC0Y9YI3UFlE4zSIGjcFlLJEJGX lA== =WxWn - -----END PGP PUBLIC KEY BLOCK----- -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.1 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE5qqV4mqjQ0CJFipgRAleQAJ4iSfEIiGFJtkuflgbFGeEuPzNwOQCePFRF GO5TjuH7TafkRwOPTFqkmDY= =BgXZ -----END PGP SIGNATURE-----