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-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2003.0090 -- RHSA-2003:015-05 Updated fileutils package fixes race condition in recursive operations 14 February 2003 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: fileutils Vendor: Red Hat Operating System: Red Hat Linux 6.2 Red Hat Linux 7.0 Red Hat Linux 7.1 Red Hat Linux 7.2 Red Hat Linux 7.3 Linux Platform: i386 IA-64 Impact: Delete Arbitrary Files Access Required: Existing Account Comment: CVE Id: CAN-2002-0435 - --------------------------BEGIN INCLUDED TEXT-------------------- - --------------------------------------------------------------------- Red Hat, Inc. Red Hat Security Advisory Synopsis: Updated fileutils package fixes race condition in recursive operations Advisory ID: RHSA-2003:015-05 Issue date: 2003-01-21 Updated on: 2003-02-12 Product: Red Hat Linux Keywords: rm move gnu mv remove Cross references: Obsoletes: CVE Names: CAN-2002-0435 - --------------------------------------------------------------------- 1. Topic: New fileutils packages for Red Hat Linux 6.2, 7.0, 7.1, 7.2 and 7.3 fix a race condition in recursive remove and move commands. 2. Relevant releases/architectures: Red Hat Linux 6.2 - i386 Red Hat Linux 7.0 - i386 Red Hat Linux 7.1 - i386 Red Hat Linux 7.2 - i386, ia64 Red Hat Linux 7.3 - i386 3. Problem description: The fileutils package includes a number of GNU versions of common and popular file management utilities. A race condition in the recursive use of 'rm' and 'mv' in fileutils 4.1 and earlier could allow local users to delete files and directories (as the user running fileutils) if the user has write access to part of the tree being moved or deleted. Red Hat Linux versions 6.2, 7, 7.1, 7.2, and 7.3 shipped with versions of fileutils that are vulnerable to this issue. This erratum provides new fileutils packages that contain a patch correcting this issue. 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. RPMs required: Red Hat Linux 6.2: SRPMS: ftp://updates.redhat.com/6.2/en/os/SRPMS/fileutils-4.0-21.1.src.rpm i386: ftp://updates.redhat.com/6.2/en/os/i386/fileutils-4.0-21.1.i386.rpm Red Hat Linux 7.0: SRPMS: ftp://updates.redhat.com/7.0/en/os/SRPMS/fileutils-4.0x-3.1.src.rpm i386: ftp://updates.redhat.com/7.0/en/os/i386/fileutils-4.0x-3.1.i386.rpm Red Hat Linux 7.1: SRPMS: ftp://updates.redhat.com/7.1/en/os/SRPMS/fileutils-4.0.36-4.1.src.rpm i386: ftp://updates.redhat.com/7.1/en/os/i386/fileutils-4.0.36-4.1.i386.rpm Red Hat Linux 7.2: SRPMS: ftp://updates.redhat.com/7.2/en/os/SRPMS/fileutils-4.1-10.1.src.rpm i386: ftp://updates.redhat.com/7.2/en/os/i386/fileutils-4.1-10.1.i386.rpm ia64: ftp://updates.redhat.com/7.2/en/os/ia64/fileutils-4.1-10.1.ia64.rpm Red Hat Linux 7.3: SRPMS: ftp://updates.redhat.com/7.3/en/os/SRPMS/fileutils-4.1-10.1.src.rpm i386: ftp://updates.redhat.com/7.3/en/os/i386/fileutils-4.1-10.1.i386.rpm 6. Verification: MD5 sum Package Name - -------------------------------------------------------------------------- 55639c22a29023720b9504fda5c8614e 6.2/en/os/SRPMS/fileutils-4.0-21.1.src.rpm cacc930476d0338f406ecead3dcf952b 6.2/en/os/i386/fileutils-4.0-21.1.i386.rpm 7c7f227ab74bde72f3412107ba63ba62 7.0/en/os/SRPMS/fileutils-4.0x-3.1.src.rpm 37887ea82f67399490cf04f30727078f 7.0/en/os/i386/fileutils-4.0x-3.1.i386.rpm fe03cd0ec3fc7a0cd6f22872704c4390 7.1/en/os/SRPMS/fileutils-4.0.36-4.1.src.rpm 24bcfd92b6298dc3510a4cbfdf812a96 7.1/en/os/i386/fileutils-4.0.36-4.1.i386.rpm 4357c82173c6ad064119cdf265f6162e 7.2/en/os/SRPMS/fileutils-4.1-10.1.src.rpm d8a014f87a6aa623c36620ba96178698 7.2/en/os/i386/fileutils-4.1-10.1.i386.rpm 3c7c5fd690854ba5655717583883ddc5 7.2/en/os/ia64/fileutils-4.1-10.1.ia64.rpm 4357c82173c6ad064119cdf265f6162e 7.3/en/os/SRPMS/fileutils-4.1-10.1.src.rpm d8a014f87a6aa623c36620ba96178698 7.3/en/os/i386/fileutils-4.1-10.1.i386.rpm These packages are GPG signed by Red Hat, Inc. for security. Our key is available at http://www.redhat.com/about/contact/pgpkey.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://online.securityfocus.com/archive/1/260936 http://mail.gnu.org/archive/html/bug-fileutils/2002-03/msg00028.html http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0435 8. Contact: The Red Hat security contact is <security@redhat.com>. More contact details at http://www.redhat.com/solutions/security/news/contact.html Copyright 2003 Red Hat, Inc. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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