From security@linux-mandrake.com Thu May 30 16:15:00 2002 From: Mandrake Linux Security Team To: bugtraq@securityfocus.com Date: 30 May 2002 18:30:02 -0000 Subject: MDKSA-2002:037-1 - dhcp update -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ________________________________________________________________________ Mandrake Linux Security Update Advisory ________________________________________________________________________ Package name: dhcp Advisory ID: MDKSA-2002:037-1 Date: May 30th, 2002 Original Advisory Date: May 29th, 2002 Affected versions: Single Network Firewall 7.2 ________________________________________________________________________ Problem Description: Fermin J. Serna discovered a problem in the dhcp server and client package from versions 3.0 to 3.0.1rc8, which are affected by a format string vulnerability that can be exploited remotely. By default, these versions of DHCP are compiled with the dns update feature enabled, which allows DHCP to update DNS records. The code that logs this update has an exploitable format string vulnerability; the update message can contain data provided by the attacker, such as a hostname. A successful exploitation could give the attacker elevated privileges equivalent to the user running the DHCP daemon, which is the user dhcpd in Mandrake Linux 8.x, but root in earlier versions. Update: The packages previously provided for SNF7.2 were the incorrect version. These new packages provide the proper version of dhcpd for SNF7.2. ________________________________________________________________________ References: http://www.cert.org/advisories/CA-2002-12.html http://www.ngsec.com/docs/advisories/NGSEC-2002-2.txt ________________________________________________________________________ Updated Packages: Single Network Firewall 7.2: 381344516b790101c2eee850879cb5aa snf7.2/RPMS/dhcp-3.0b2pl23-2.1mdk.i586.rpm 84e4567de46573b577b235079ce31e97 snf7.2/RPMS/dhcp-client-3.0b2pl23-2.1mdk.i586.rpm 2616a1003b248b0f27b7fb70abca57cf snf7.2/RPMS/dhcp-relay-3.0b2pl23-2.1mdk.i586.rpm 5865549fc6715b730ddff90194c15b96 snf7.2/SRPMS/dhcp-3.0b2pl23-2.1mdk.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) iD8DBQE89m+qmqjQ0CJFipgRAgmiAJ9i/ypealmoYSGqwFH4kQ51uYayhgCgmWiy gbIbAu/Tr/41FdYVh+FRXKk= =YCzr -----END PGP SIGNATURE-----