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-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2003.0812 -- RHSA-2003:316-01 Updated iproute packages fix local security vulnerability 25 November 2003 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: iproute Publisher: Red Hat Operating System: Red Hat Linux 9 and prior Linux Impact: Denial of Service Access Required: Existing Account CVE Names: CAN-2003-0856 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - --------------------------------------------------------------------- Red Hat Security Advisory Synopsis: Updated iproute packages fix local security vulnerability Advisory ID: RHSA-2003:316-01 Issue date: 2003-11-24 Updated on: 2003-11-24 Product: Red Hat Linux Keywords: DoS Cross references: Obsoletes: CVE Names: CAN-2003-0856 - - --------------------------------------------------------------------- 1. Topic: Updated iproute packages that close a locally-exploitable denial of service vulnerability are now available. 2. Relevant releases/architectures: Red Hat Linux 7.1 - i386 Red Hat Linux 7.1 for iSeries (64 bit) - ppc Red Hat Linux 7.1 for pSeries (64 bit) - ppc 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: The iproute package contains advanced IP routing and network device configuration tools. Herbert Xu reported that iproute can accept spoofed messages sent on the kernel netlink interface by other users on the local machine. This could lead to a local denial of service attack. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2003-0856 to this issue. Users of iproute should upgrade to these erratum packages, which contain a patch that checks that netlink messages actually came from the kernel. 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. If up2date fails to connect to Red Hat Network due to SSL Certificate Errors, you need to install a version of the up2date client with an updated certificate. The latest version of up2date is available from the Red Hat FTP site and may also be downloaded directly from the RHN website: https://rhn.redhat.com/help/latest-up2date.pxt 5. RPMs required: Red Hat Linux 7.1: SRPMS: ftp://updates.redhat.com/7.1/en/os/SRPMS/iproute-2.4.7-7.71.1.src.rpm ftp://updates.redhat.com/7.1/en/os/SRPMS/iproute-2.4.7-7.71ppc.1.src.rpm i386: ftp://updates.redhat.com/7.1/en/os/i386/iproute-2.4.7-7.71.1.i386.rpm Red Hat Linux 7.1 for iSeries (64 bit): SRPMS: ftp://updates.redhat.com/7.1/en/os/iSeries/SRPMS/iproute-2.4.7-7.71ppc.1.src.rpm ppc: ftp://updates.redhat.com/7.1/en/os/iSeries/ppc/iproute-2.4.7-7.71ppc.1.ppc.rpm Red Hat Linux 7.1 for pSeries (64 bit): SRPMS: ftp://updates.redhat.com/7.1/en/os/pSeries/SRPMS/iproute-2.4.7-7.71ppc.1.src.rpm ppc: ftp://updates.redhat.com/7.1/en/os/pSeries/ppc/iproute-2.4.7-7.71ppc.1.ppc.rpm Red Hat Linux 7.2: SRPMS: ftp://updates.redhat.com/7.2/en/os/SRPMS/iproute-2.4.7-7.72.1.src.rpm i386: ftp://updates.redhat.com/7.2/en/os/i386/iproute-2.4.7-7.72.1.i386.rpm ia64: ftp://updates.redhat.com/7.2/en/os/ia64/iproute-2.4.7-7.72.1.ia64.rpm Red Hat Linux 7.3: SRPMS: ftp://updates.redhat.com/7.3/en/os/SRPMS/iproute-2.4.7-7.73.1.src.rpm i386: ftp://updates.redhat.com/7.3/en/os/i386/iproute-2.4.7-7.73.1.i386.rpm Red Hat Linux 8.0: SRPMS: ftp://updates.redhat.com/8.0/en/os/SRPMS/iproute-2.4.7-7.80.1.src.rpm i386: ftp://updates.redhat.com/8.0/en/os/i386/iproute-2.4.7-7.80.1.i386.rpm Red Hat Linux 9: SRPMS: ftp://updates.redhat.com/9/en/os/SRPMS/iproute-2.4.7-7.90.1.src.rpm i386: ftp://updates.redhat.com/9/en/os/i386/iproute-2.4.7-7.90.1.i386.rpm 6. Verification: MD5 sum Package Name - - -------------------------------------------------------------------------- 2f1ea42cdf30113141f10538e2179beb 7.1/en/os/SRPMS/iproute-2.4.7-7.71.1.src.rpm 18b11d4c092ec8f32c90d6c46eff0e5e 7.1/en/os/i386/iproute-2.4.7-7.71.1.i386.rpm d610fcf135659a40e1cace634e706aef 7.1/en/os/iSeries/SRPMS/iproute-2.4.7-7.71ppc.1.src.rpm 10517e763dc7e25a93664fce504e1d0a 7.1/en/os/iSeries/ppc/iproute-2.4.7-7.71ppc.1.ppc.rpm d610fcf135659a40e1cace634e706aef 7.1/en/os/pSeries/SRPMS/iproute-2.4.7-7.71ppc.1.src.rpm 10517e763dc7e25a93664fce504e1d0a 7.1/en/os/pSeries/ppc/iproute-2.4.7-7.71ppc.1.ppc.rpm 3d7a9f23eb56e24012f0a2cfd4c4e403 7.2/en/os/SRPMS/iproute-2.4.7-7.72.1.src.rpm 90f4960d5e9013bfbe678ff4286bc17f 7.2/en/os/i386/iproute-2.4.7-7.72.1.i386.rpm 86f3216474f4effa7364b75da360b153 7.2/en/os/ia64/iproute-2.4.7-7.72.1.ia64.rpm 7e95bd6212c96d20b25a8c761dd2c749 7.3/en/os/SRPMS/iproute-2.4.7-7.73.1.src.rpm e05fc87d3047905d89850dd705e2f641 7.3/en/os/i386/iproute-2.4.7-7.73.1.i386.rpm 22ca841ec539d36b14ba8f3b8c82f78c 8.0/en/os/SRPMS/iproute-2.4.7-7.80.1.src.rpm f0075b7a8250003ff06d50bec81627a3 8.0/en/os/i386/iproute-2.4.7-7.80.1.i386.rpm f373608f9f55848c2592c13e594319d3 9/en/os/SRPMS/iproute-2.4.7-7.90.1.src.rpm ffaab09f8adbc38e67a009c5a7780b45 9/en/os/i386/iproute-2.4.7-7.90.1.i386.rpm These packages are GPG signed by Red Hat for security. Our key is available from https://www.redhat.com/security/keys.html 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> 7. References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0856 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://www.redhat.com/solutions/security/news/contact.html Copyright 2003 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (GNU/Linux) iD8DBQE/wcPzXlSAg2UNWIIRAlqyAJ99x6MkDh92ywHXC7vM6bIN7RVquwCeM2+O jpLJVxge98jvEIgswSb84nY= =RwwK - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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On call after hours for member emergencies only. -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBP8KYECh9+71yA2DNAQEWkQP8DdskAmFMkbdZR+KSBkYZeeCFD0wRjJ8o 51KTKiqe/BXl0LznasGb64eKH1BhfQAc20addCdXlU7NsjR2mVDXKQfDJkDEZZQ0 MUyhMOQdtO0btuCJB+GtceHecytPpeFbOZOX+v0tnCInXAMORqYqtDDOOqs0fE/h Q3vymfj4Ff4= =2T8v -----END PGP SIGNATURE-----