-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SuSE Security Announcement Package: mc Announcement-ID: SuSE-SA:2001:11 Date: Tuesday, April 10th, 2001 15.21 MEST Affected SuSE versions: 6.1, 6.2, 6.3, 6.4, 7.0, 7.1 Vulnerability Type: local privilege escalation Severity (1-10): 4 SuSE default package: no Other affected systems: all system using mc Content of this advisory: 1) security vulnerability resolved: mc problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information The Midnight Commander, mc(1), is a ncurses-based file manager. A local attacker could trick mc(1) into executing commands with the privileges of the user running mc(1) by creating malicious directory names. This attack leads to local privilege escalation. There does no workaround exist. The only solution is to update the mc package. Download the update package from locations desribed below and install the package with the command `rpm -Uhv file.rpm'. The md5sum for each file is in the line below. You can verify the integrity of the rpm files using the command `rpm --checksig --nogpg file.rpm', independently from the md5 signatures below. i386 Intel Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/i386/update/7.1/ap1/mc-4.5.51-1.i386.rpm c1eb197dff39e61065c498fa91347836 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/mc-4.5.51-1.src.rpm cb768e70eacbf622464a71d8b5983769 SuSE-7.0 ftp://ftp.suse.com/pub/suse/i386/update/7.0/ap1/mc-4.5.50-1.i386.rpm 2770c2df6acd3e3ec8d9195e689aa037 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.0/zq1/mc-4.5.50-1.src.rpm 579a86de5c2a14e61d0b6097611fdfb7 SuSE-6.4 ftp://ftp.suse.com/pub/suse/i386/update/6.4/ap1/mc-4.5.42-47.i386.rpm c16569cbbeb1d42823c1b6abdd61c03e source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/mc-4.5.42-47.src.rpm d30069c9d3bf76b6f90d11b6cff86133 SuSE-6.3 ftp://ftp.suse.com/pub/suse/i386/update/6.3/ap1/mc-4.5.40-3.i386.rpm 655a6cac8bdb49789ee55c3bdc38e104 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.3/zq1/mc-4.5.40-3.src.rpm 969a5f5427e04ea2710516ae3b9360c6 SuSE-6.2 ftp://ftp.suse.com/pub/suse/i386/update/6.2/ap1/mc-4.5.37-20.i386.rpm c6cf641cd54c976df4f64a0fa1263d65 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.2/zq1/mc-4.5.37-20.src.rpm ccdd4d9e727edc45c610013f69af9c86 SuSE-6.1 ftp://ftp.suse.com/pub/suse/i386/update/6.1/ap1/mc-4.5.33-1.i386.rpm 2dd900869259558ef6ad9b16e056322d source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.1/zq1/mc-4.5.33-1.src.rpm 10c3a9ae63cbd8e43923f9245bba166c Sparc Platform: SuSE-7.0 ftp://ftp.suse.com/pub/suse/sparc/update/7.0/ap1/mc-4.5.50-1.sparc.rpm 16fab4824da5347fe243bfd8a3196a02 source rpm: ftp://ftp.suse.com/pub/suse/sparc/update/7.0/zq1/mc-4.5.50-1.src.rpm f8a51dd5975e6c1c34492f1fae6c66c7 AXP Alpha Platform: SuSE-6.4 ftp://ftp.suse.com/pub/suse/axp/update/6.4/ap1/mc-4.5.42-47.alpha.rpm dd80759475ca682a421cdd7dff4c6539 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/mc-4.5.42-47.src.rpm 1d98da3743c951003b99bf8b88b577f1 SuSE-6.3 ftp://ftp.suse.com/pub/suse/axp/update/6.3/ap1/mc-4.5.40-1.alpha.rpm 31a77b496e6c4185b0d9dd50336fb238 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/6.3/zq1/mc-4.5.40-1.src.rpm dae662f3de8f42590feb62e1dc3abce8 SuSE-6.1 ftp://ftp.suse.com/pub/suse/axp/update/6.1/ap1/mc-4.5.33-14.alpha.rpm 58906f33013bc64cc090ed56c05ab6d7 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/6.1/zq1/mc-4.5.33-14.src.rpm 32727c15d6df11ceaa07afbd67b96b64 PPC PowerPC Platform: SuSE-7.0 ftp://ftp.suse.com/pub/suse/ppc/update/7.0/ap1/mc-4.5.50-1.ppc.rpm 0f17db922b03ee5db09e46311b5c1096 source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/7.0/zq1/mc-4.5.50-1.src.rpm aa1d77e05edd2b6097896be3bc3433d2 SuSE-6.4 ftp://ftp.suse.com/pub/suse/ppc/update/6.4/ap1/mc-4.5.42-47.ppc.rpm 018dbd5d4f7ed760e5fcfe22bceee016 source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/mc-4.5.42-47.src.rpm e56125ce9edd85accd1ea2830e578504 ______________________________________________________________________________ 2) Pending vulnerabilities in SuSE Distributions and Workarounds: - We are in the process of preparing update packages for the man package which has been found vulnerable to a commandline format string bug. The man command is installed suid man on SuSE systems. When exploited, the bug can be used to install a different man binary to introduce a trojan into the system. As an interim workaround, we recommend to `chmod -s /usr/bin/man´ and ignore the warnings and errors when viewing manpages. - Two bugs were found in the text editor vim. These bugs are currently being fixed. - A bufferoverflow in sudo was discovered and fixed RPMs will be available as soon as possible. A exploit was not made public until now. - NEdit a GUI-style text editor needs an update due to a tmp race condition. The source code is currently being reviewed and new RPMs will be available within the next days. ______________________________________________________________________________ 3) standard appendix: SuSE runs two security mailing lists to which any interested party may subscribe: suse-security@suse.com - general/linux/SuSE security discussion. All SuSE security announcements are sent to this list. To subscribe, send an email to . suse-security-announce@suse.com - SuSE's announce-only mailing list. Only SuSE's security annoucements are sent to this list. To subscribe, send an email to . For general information or the frequently asked questions (faq) send mail to: or respectively. =============================================== SuSE's security contact is . =============================================== ______________________________________________________________________________ The information in this advisory may be distributed or reproduced, provided that the advisory is not modified in any way. SuSE GmbH makes no warranties of any kind whatsoever with respect to the information contained in this security advisory. -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv iQEVAwUBOtMMnHey5gA9JdPZAQGAxAgAnwW45oAtOGMOySwqVdhKwqIrN/7FOEED 3FvQtMrLlICwAqD/DaS35qQs2IqIWfVtAm/bRoLlNwAkizmu4P2InskvNBXO9YuS YdbntegiAdmX/7P55/9xBdOZub4PRi5jk7MWRJd//VWaumgx4RZHWnVvtI2eSWKT xc6yBgxPfTlQQxp8mh3oUbAgkUf3kfE2CuSs7NXk7dV0xoenjfObt/3SPlHEBaRw ASFDcXk8PiRPAM1KhtzkKQqGYDijDGfzXJ65pU2dm5mqUa2hwJrVFtLfMwPD7nYP 9Bvk4ym0iXQ3LNIQgYFgTcCuM4W4BV1IB4YeHyorDsOwbl2K7QggkQ== =IWSy -----END PGP SIGNATURE----- Bye, Thomas -- Thomas Biege, SuSE GmbH, Schanzaeckerstr. 10, 90443 Nuernberg E@mail: thomas@suse.de Function: Security Support & Auditing "lynx -source http://www.suse.de/~thomas/thomas.pgp | pgp -fka" Key fingerprint = 09 48 F2 FD 81 F7 E7 98 6D C7 36 F1 96 6A 12 47