[RHSA-2003:160-01] Updated xinetd packages fix a denial-of-service attack and other bugs From: bugzilla@redhat.com To: redhat-watch-list@redhat.com Date: Yesterday 19.15.00 --------------------------------------------------------------------- Red Hat Security Advisory Synopsis: Updated xinetd packages fix a denial-of-service attack and other bugs Advisory ID: RHSA-2003:160-01 Issue date: 2003-05-13 Updated on: 2003-05-13 Product: Red Hat Linux Keywords: Cross references: Obsoletes: CVE Names: CAN-2003-0211 --------------------------------------------------------------------- 1. Topic: Updated xinetd packages that fix a security vulnerability are now avaliable. 2. Relevant releases/architectures: Red Hat Linux 7.1 - i386 Red Hat Linux 7.2 - i386, ia64 Red Hat Linux 7.3 - i386 Red Hat Linux 8.0 - i386 Red Hat Linux 9 - i386 3. Problem description: Xinetd is a 'master server' that is used to to accept service connection requests and start the appropriate servers. Because of a programming error, memory was allocated and never freed if a connection was refused for any reason. An attacker could exploit this flaw to crash the xinetd server, rendering all services it controls unavaliable. In addition, other flaws in xinetd could cause incorrect operation in certain unusual server configurations. All users of xinetd are advised to update to the packages listed in this erratum, which contain an upgrade to xinetd-2.3.11 and are not vulnerable to these issues. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. To update all RPMs for your particular architecture, run: rpm -Fvh [filenames] where [filenames] is a list of the RPMs you wish to upgrade. Only those RPMs which are currently installed will be updated. Those RPMs which are not installed but included in the list will not be updated. Note that you can also use wildcards (*.rpm) if your current directory *only* contains the desired RPMs. Please note that this update is also available via Red Hat Network. Many people find this an easier way to apply updates. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date This will start an interactive process that will result in the appropriate RPMs being upgraded on your system. 5. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info): 86304 - loadavg ability(max_load attribute) is not supported 86297 - Server arg "-reuse" is meaningless in /etc/init.d/xinetd 85530 - Typo in /etc/init.d/xinetd 78699 - xinetd reload kills all services if exactly nine services are enabled 88537 - CAN-2003-0211 xinetd leaks memory 87863 - socket leak 85371 - xinetd regression - doesn't accept valid facility on log_type SYSLOG (e.g. mail) 84840 - tcpmux based services cannot be used 79274 - Xinetd v 2.3.7-4.7x redirects fail to start 79085 - not updated via up2date 78903 - xinetd redirect does not work after update 77781 - xinetd stop serving the services because "Too many open files" 6. RPMs required: Red Hat Linux 7.1: SRPMS: ftp://updates.redhat.com/7.1/en/os/SRPMS/xinetd-2.3.11-1.7x.src.rpm i386: ftp://updates.redhat.com/7.1/en/os/i386/xinetd-2.3.11-1.7x.i386.rpm Red Hat Linux 7.2: SRPMS: ftp://updates.redhat.com/7.2/en/os/SRPMS/xinetd-2.3.11-1.7x.src.rpm i386: ftp://updates.redhat.com/7.2/en/os/i386/xinetd-2.3.11-1.7x.i386.rpm ia64: ftp://updates.redhat.com/7.2/en/os/ia64/xinetd-2.3.11-1.7x.ia64.rpm Red Hat Linux 7.3: SRPMS: ftp://updates.redhat.com/7.3/en/os/SRPMS/xinetd-2.3.11-1.7x.src.rpm i386: ftp://updates.redhat.com/7.3/en/os/i386/xinetd-2.3.11-1.7x.i386.rpm Red Hat Linux 8.0: SRPMS: ftp://updates.redhat.com/8.0/en/os/SRPMS/xinetd-2.3.11-1.8.0.src.rpm i386: ftp://updates.redhat.com/8.0/en/os/i386/xinetd-2.3.11-1.8.0.i386.rpm Red Hat Linux 9: SRPMS: ftp://updates.redhat.com/9/en/os/SRPMS/xinetd-2.3.11-1.9.0.src.rpm i386: ftp://updates.redhat.com/9/en/os/i386/xinetd-2.3.11-1.9.0.i386.rpm 7. Verification: MD5 sum Package Name -------------------------------------------------------------------------- a4c965238473b1d1237479d31ae5073e 7.1/en/os/SRPMS/xinetd-2.3.11-1.7x.src.rpm e368ba0d3f825e99bf3450d1ca53bb0a 7.1/en/os/i386/xinetd-2.3.11-1.7x.i386.rpm a4c965238473b1d1237479d31ae5073e 7.2/en/os/SRPMS/xinetd-2.3.11-1.7x.src.rpm e368ba0d3f825e99bf3450d1ca53bb0a 7.2/en/os/i386/xinetd-2.3.11-1.7x.i386.rpm 373699e5412d48104f7c45da5e5a5a8c 7.2/en/os/ia64/xinetd-2.3.11-1.7x.ia64.rpm a4c965238473b1d1237479d31ae5073e 7.3/en/os/SRPMS/xinetd-2.3.11-1.7x.src.rpm e368ba0d3f825e99bf3450d1ca53bb0a 7.3/en/os/i386/xinetd-2.3.11-1.7x.i386.rpm 47b54d2382d49ddb6d658fae7fcb7b32 8.0/en/os/SRPMS/xinetd-2.3.11-1.8.0.src.rpm 3f211ce0d3cff13c8591fe63e3497531 8.0/en/os/i386/xinetd-2.3.11-1.8.0.i386.rpm 89dacdd4019d6f86b73c27e6f3b8cd19 9/en/os/SRPMS/xinetd-2.3.11-1.9.0.src.rpm 386e9e7f912afcfc07b6c1c5f8fb2bee 9/en/os/i386/xinetd-2.3.11-1.9.0.i386.rpm These packages are GPG signed by Red Hat for security. Our key is available at http://www.redhat.com/solutions/security/news/publickey/ You can verify each package with the following command: rpm --checksig -v <filename> If you only wish to verify that each package has not been corrupted or tampered with, examine only the md5sum with the following command: md5sum <filename> 8. References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0211 9. Contact: The Red Hat security contact is <security@redhat.com>. More contact details at http://www.redhat.com/solutions/security/news/contact/ Copyright 2003 Red Hat, Inc.
glsa sent
