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[SECURITY] [DSA-364-1] New man-db packages fix buffer overflows, arbitrary command execution
From: debian-security-announce () lists debian org
Date: Mon, 4 Aug 2003 20:37:57 -0400
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -------------------------------------------------------------------------- Debian Security Advisory DSA 364-1 security () debian org http://www.debian.org/security/ Matt Zimmerman August 4th, 2003 http://www.debian.org/security/faq - -------------------------------------------------------------------------- Package : man-db Vulnerability : buffer overflows, arbitrary command execution Problem-Type : local Debian-specific: no CVE Ids : CAN-2003-0620, CAN-2003-0645 man-db provides the standard man(1) command on Debian systems. During configuration of this package, the administrator is asked whether man(1) should run setuid to a dedicated user ("man") in order to provide a shared cache of preformatted manual pages. The default is for man(1) NOT to be setuid, and in this configuration no known vulnerability exists. However, if the user explicitly requests setuid operation, a local attacker could exploit either of the following bugs to execute arbitrary code as the "man" user. Again, these vulnerabilities do not affect the default configuration, where man is not setuid. - - CAN-2003-0620: Multiple buffer overflows in man-db 2.4.1 and earlier, when installed setuid, allow local users to gain privileges via (1) MANDATORY_MANPATH, MANPATH_MAP, and MANDB_MAP arguments to add_to_dirlist in manp.c, (2) a long pathname to ult_src in ult_src.c, (3) a long .so argument to test_for_include in ult_src.c, (4) a long MANPATH environment variable, or (5) a long PATH environment variable. - - CAN-2003-0645: Certain DEFINE directives in ~/.manpath, which contained commands to be executed, would be honored even when running setuid, allowing any user to execute commands as the "man" user. For the current stable distribution (woody), these problems have been fixed in version 2.3.20-18.woody.2. For the unstable distribution (sid), these problems have been fixed in version 2.4.1-12. We recommend that you update your man-db package. Upgrade Instructions - -------------------- wget url will fetch the file for you dpkg -i file.deb will install the referenced file. If you are using the apt-get package manager, use the line for sources.list as given below: apt-get update will update the internal database apt-get upgrade will install corrected packages You may use an automated update by adding the resources from the footer to the proper configuration. Debian GNU/Linux 3.0 alias woody - -------------------------------- Source archives: http://security.debian.org/pool/updates/main/m/man-db/man-db_2.3.20-18.woody.2.dsc Size/MD5 checksum: 632 88f2a959f43f5315d0a806717efc0059 http://security.debian.org/pool/updates/main/m/man-db/man-db_2.3.20-18.woody.2.diff.gz Size/MD5 checksum: 106550 11c00b2f23ab67aecdb3a22483c9ece8 http://security.debian.org/pool/updates/main/m/man-db/man-db_2.3.20.orig.tar.gz Size/MD5 checksum: 516391 5021f8a23cba9b14df39aa06407baefb Alpha architecture: http://security.debian.org/pool/updates/main/m/man-db/man-db_2.3.20-18.woody.2_alpha.deb Size/MD5 checksum: 543394 1111c3763d4f237ea6d73fb2a03064b5 ARM architecture: http://security.debian.org/pool/updates/main/m/man-db/man-db_2.3.20-18.woody.2_arm.deb Size/MD5 checksum: 478414 e188ec3286cfcc8c8f987a90b080413b Intel IA-32 architecture: http://security.debian.org/pool/updates/main/m/man-db/man-db_2.3.20-18.woody.2_i386.deb Size/MD5 checksum: 472766 1f93cf6f4cfeed221190ffb8dc7d60f7 Intel IA-64 architecture: http://security.debian.org/pool/updates/main/m/man-db/man-db_2.3.20-18.woody.2_ia64.deb Size/MD5 checksum: 601548 e387151776a92d633bd9aad2c0412036 HP Precision architecture: http://security.debian.org/pool/updates/main/m/man-db/man-db_2.3.20-18.woody.2_hppa.deb Size/MD5 checksum: 521056 7008ad4cbd4b0ee3b6d43c9cc552f5ab Motorola 680x0 architecture: http://security.debian.org/pool/updates/main/m/man-db/man-db_2.3.20-18.woody.2_m68k.deb Size/MD5 checksum: 467578 cd566e411a14c30ff3ee45261e864697 Big endian MIPS architecture: http://security.debian.org/pool/updates/main/m/man-db/man-db_2.3.20-18.woody.2_mips.deb Size/MD5 checksum: 516014 c5cb6f88eaf124fa43ea262441f82a05 Little endian MIPS architecture: http://security.debian.org/pool/updates/main/m/man-db/man-db_2.3.20-18.woody.2_mipsel.deb Size/MD5 checksum: 517142 cae6cd634af680723502e5571bb40ac3 PowerPC architecture: http://security.debian.org/pool/updates/main/m/man-db/man-db_2.3.20-18.woody.2_powerpc.deb Size/MD5 checksum: 493992 fb696ef74405d4b8f53cadf89180f48d IBM S/390 architecture: http://security.debian.org/pool/updates/main/m/man-db/man-db_2.3.20-18.woody.2_s390.deb Size/MD5 checksum: 479112 0deef4a03421377c52befbc2bea5ed31 Sun Sparc architecture: http://security.debian.org/pool/updates/main/m/man-db/man-db_2.3.20-18.woody.2_sparc.deb Size/MD5 checksum: 479184 c5f7de23038fc8d29db0475062a706fc These files will probably be moved into the stable distribution on its next revision. - --------------------------------------------------------------------------------- For apt-get: deb http://security.debian.org/ stable/updates main For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main Mailing list: debian-security-announce () lists debian org Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg> -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (GNU/Linux) iD8DBQE/LvwPArxCt0PiXR4RAoA1AJoCMfFafd2wCCQwR7NGUJU5GUdhjgCfaISH dYjPMb7LLnZ4M+jULyG5nAQ= =j3kR -----END PGP SIGNATURE----- _______________________________________________ Full-Disclosure - We believe in it. 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