From security@linux-mandrake.com Thu Aug 8 21:42:59 2002 From: Mandrake Linux Security Team To: full-disclosure@lists.netsys.com Date: 9 Aug 2002 00:21:03 -0000 Reply-To: full-disclosure@lists.netsys.com Subject: [Full-Disclosure] MDKSA-2002:047 - util-linux update -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ________________________________________________________________________ Mandrake Linux Security Update Advisory ________________________________________________________________________ Package name: util-linux Advisory ID: MDKSA-2002:047 Date: August 8th, 2002 Affected versions: 7.1, 7.2, 8.0, 8.1, 8.2, Corporate Server 1.0.1, Single Network Firewall 7.2 ________________________________________________________________________ Problem Description: Michal Zalewski found a vulnerability in the util-linux package with the chfn utility. This utility allows users to modify some information in the /etc/passwd file, and is installed setuid root. Using a carefully crafted attack sequence, an attacker can exploit a complex file locking and modification race that would allow them to make changes to the /etc/passwd file. To successfully exploit this vulnerability and obtain privilege escalation, there is a need for some administrator interaction, and the password file must over over 4kb in size; the attacker's entry cannot be in the last 4kb of the file. ________________________________________________________________________ References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0638 http://www.kb.cert.org/vuls/id/405955 ________________________________________________________________________ Updated Packages: Linux-Mandrake 7.1: 4c5df1947b62460beb8df7592ef35c6e 7.1/RPMS/util-linux-2.10o-6.1mdk.i586.rpm fa4fd5a20bc4cbca324294e3ed712eb1 7.1/SRPMS/util-linux-2.10o-6.1mdk.src.rpm Linux-Mandrake 7.2: 69f07cace4649f3d8326ea8866d95e4f 7.2/RPMS/util-linux-2.10o-6.1mdk.i586.rpm fa4fd5a20bc4cbca324294e3ed712eb1 7.2/SRPMS/util-linux-2.10o-6.1mdk.src.rpm Mandrake Linux 8.0: 18a2dc6e74636bdf6b7be146dfa3d6cf 8.0/RPMS/util-linux-2.10s-3.2mdk.i586.rpm dd4a423ddc444a202176b09e5251f6fd 8.0/SRPMS/util-linux-2.10s-3.2mdk.src.rpm Mandrake Linux 8.0/ppc: 55e49d1ad321c229a8468f11a43b2fb7 ppc/8.0/RPMS/util-linux-2.11h-3.5mdk.ppc.rpm 25c5b47d39f8b1c0147930218ddaecd5 ppc/8.0/SRPMS/util-linux-2.11h-3.5mdk.src.rpm Mandrake Linux 8.1: 889ba34fcb46d9c2c2f11cf4fa81dd23 8.1/RPMS/util-linux-2.11h-3.5mdk.i586.rpm 25c5b47d39f8b1c0147930218ddaecd5 8.1/SRPMS/util-linux-2.11h-3.5mdk.src.rpm Mandrake Linux 8.1/ia64: 2405d127006eef10e1d58e23866f0044 ia64/8.1/RPMS/util-linux-2.11h-3.5mdk.ia64.rpm 25c5b47d39f8b1c0147930218ddaecd5 ia64/8.1/SRPMS/util-linux-2.11h-3.5mdk.src.rpm Mandrake Linux 8.2: f137a274c2969ca3b893e96902dee893 8.2/RPMS/losetup-2.11n-4.3mdk.i586.rpm c074a07a7f3c3fd92b0be2ebd02dff93 8.2/RPMS/mount-2.11n-4.3mdk.i586.rpm 420c1537cb8260f984125fd6311dc3d1 8.2/RPMS/util-linux-2.11n-4.3mdk.i586.rpm 240139061f653327735eb46c3009d245 8.2/SRPMS/util-linux-2.11n-4.3mdk.src.rpm Mandrake Linux 8.2/ppc: 9260b9deba8a1e025e028217f99df3ed ppc/8.2/RPMS/losetup-2.11n-4.3mdk.ppc.rpm abdbafa149f499409c31969ff081e818 ppc/8.2/RPMS/mount-2.11n-4.3mdk.ppc.rpm 3adff58b4e961fa17c8be1d1224072a2 ppc/8.2/RPMS/util-linux-2.11n-4.3mdk.ppc.rpm 240139061f653327735eb46c3009d245 ppc/8.2/SRPMS/util-linux-2.11n-4.3mdk.src.rpm Corporate Server 1.0.1: 4c5df1947b62460beb8df7592ef35c6e 1.0.1/RPMS/util-linux-2.10o-6.1mdk.i586.rpm fa4fd5a20bc4cbca324294e3ed712eb1 1.0.1/SRPMS/util-linux-2.10o-6.1mdk.src.rpm Single Network Firewall 7.2: 69f07cace4649f3d8326ea8866d95e4f snf7.2/RPMS/util-linux-2.10o-6.1mdk.i586.rpm fa4fd5a20bc4cbca324294e3ed712eb1 snf7.2/SRPMS/util-linux-2.10o-6.1mdk.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 All packages are signed by MandrakeSoft for security. You can obtain the GPG public key of the Mandrake Linux Security Team from: 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 - -----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.0.7 (GNU/Linux) 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+v3gUDsNfQfiKBvQSANu1hdulqIRgQQEQIA BgUCOtNVGQAKCRBZ5w3um0pAJJWQAKDUoL5He+mKbfrMaTuyU5lmRyJ0fwCgoFAP WdvQlu/kFjphF740XeOwtOqIRgQQEQIABgUCOu8A6QAKCRBynDnb9lq3CnpjAJ4w Pk0SEE9U4r40IxWpwLU+wrWVugCdFfSPllPpZRCiaC7HwbFcfExRmPaIRgQQEQIA BgUCPI+UAwAKCRDniYrgcHcf8xK5AKCm/Mq8qP8GE0o1hEX22QsJMZwH5gCfZ72H 8TacOb3oAmBdprf+K6gkdOiIRgQQEQIABgUCOtOieAAKCRCv2bZyU0yB80MeAJ9K +jXt0cKuaUonRU+CRGetk6t9dgCfTRRL6/puOKdD6md70+K5EBBSvsG0OE1hbmRy YWtlIExpbnV4IFNlY3VyaXR5IFRlYW0gPHNlY3VyaXR5QG1hbmRyYWtlc29mdC5j b20+iFcEExECABcFAjyPnuUFCwcKAwQDFQMCAxYCAQIXgAAKCRCaqNDQIkWKmFi+ AJsHhohgnU3ik4+gy3EdFlB2i/MBoACg6lHn5cnVvTcmgNccWxeNxLLZI5e5AQ0E OWnn7xAEAOQlTVY4TiNo5V/iP0J1xnqjqlqZsU7yEBKo/gZz6/+hx75RURe1ebiJ 9F779FQbpJ9Epz1KLSXvq974rnVb813zuGdmgFyk+ryA/rTR2RQ8h+EoNkwmATzR xBXVJb57fFQjxOu4eNjZAtfII/YXb0uyXXrdr5dlJ/3eXrcO4p0XAAMFBACCxo6Z 269s+A4v8C6Ui12aarOQcCDlV8cVG9LkyatU3FNTlnasqwo6EkaP572448weJWwN 6SCXVl+xOYLiK0hL/6Jb/O9Agw75yUVdk+RMM2I4fNEi+y4hmfMh2siBv8yEkEvZ jTcl3TpkTfzYky85tu433wmKaLFOv0WjBFSikohGBBgRAgAGBQI5aefvAAoJEJqo 0NAiRYqYid0AoJgeWzXrEdIClBOSW5Q6FzqJJyaqAKC0Y9YI3UFlE4zSIGjcFlLJ EJGXlA== =yGlX - -----END PGP PUBLIC KEY BLOCK----- -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (GNU/Linux) iD8DBQE9UwrvmqjQ0CJFipgRAqT7AKCXo4vqIEINKD7WCr2DAmav5eusGACdFhUG 5m1VxW/oTHUh8niFyqB0x/s= =jTBV -----END PGP SIGNATURE----- _______________________________________________ Full-Disclosure - We believe in it. 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