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98
security advisoryRed Hat Linuxdenial of serviceRed Hat Linux 9: RHSA-2003:309-01 Moderate: Fileutils Memory DoS
Georgi Guninski discovered a memory starvation denial of servicevulnerability in the ls program.. ` - --------------------------------------------------------------------- Red Hat Security Advisory Synopsis: Updated fileutils/coreutils package fix ls vulnerabilities Advisory ID: RHSA-2003:309-01 Issue date: 2003-11-03 Updated on: 2003-11-03 Product: Red Hat Linux Keywords: Cross references: Obsoletes: CVE Names: CAN-2003-0853 CAN-2003-0854 - --------------------------------------------------------------------- 1. Topic: Updated fileutils and coreutils packages that close a potential denial of service vulnerability are now available. 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: The fileutils package contains several basic system utilities. One of these utilities is the "ls" program, which is used to list information about files and directories. In Red Hat Linux 9, the ls program is part of the coreutils package. Georgi Guninski discovered a memory starvation denial of service vulnerability in the ls program. It is possible to make ls allocate a huge amount of memory by specifying certain command line arguments. This vulnerability is remotely exploitable through services like wu-ftpd, which pass user arguments to ls. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2003-0854 to this issue. A non-exploitable integer overflow in ls has also been discovered. It is possible to make ls crash by specifying certain command line arguments. This vulnerability is remotely exploitable through services like wu-ftpd, which pass user arguments to ls. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2003-0853 to this issue. This erratum contains new fileutils packages for Red Hat Linux versions 7.1,7.2, 7.3, and 8.0. It also contains new coreutils packages for Red Hat Linux 9. These packages contain backported patches correcting these vulnerabilities. The Red Hat Linux 7.2 and 7.3 packages also add support for the O_DIRECT flag, which controls the use of synchronous I/O on file systems such as OCFS. 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: 5. Bug IDs fixed ( for more info): 102006 - fileutils needs O_DIRECT support for OCFS 6. RPMs required: Red Hat Linux 7.1: SRPMS: i386: Red Hat Linux 7.2: SRPMS: i386: ia64: Red Hat Linux 7.3: SRPMS: i386: Red Hat Linux 8.0: SRPMS: i386: Red Hat Linux 9: SRPMS: i386: 7. Verification: MD5 sum Package Name - -------------------------------------------------------------------------- 58ebee5bdac1db4f91f60775848a590c 7.1/en/os/SRPMS/fileutils-4.0.36-4.3.src.rpm bbb048d1c72f9dcac72e0bf940ed84637.1/en/os/i386/fileutils-4.0.36-4.3.i386.rpm 2cbf191530b8ea940e3b67242527079e 7.2/en/os/SRPMS/fileutils-4.1-10.4.src.rpm 69c66c5ea3fdd55c1993ab7cfcfd0cdf 7.2/en/os/i386/fileutils-4.1-10.4.i386.rpm 23cfc912efb5b04a53fa68842a84f14a 7.2/en/os/ia64/fileutils-4.1-10.4.ia64.rpm 2cbf191530b8ea940e3b67242527079e 7.3/en/os/SRPMS/fileutils-4.1-10.4.src.rpm 69c66c5ea3fdd55c1993ab7cfcfd0cdf 7.3/en/os/i386/fileutils-4.1-10.4.i386.rpm daa4f65f4176ef564e134b00cc43ed90 8.0/en/os/SRPMS/fileutils-4.1.9-11.2.src.rpm a8d416c379618c5d0be74b025bea47aa 8.0/en/os/i386/fileutils-4.1.9-11.2.i386.rpm 748382f4e967d871561442c4debbe685 9/en/os/SRPMS/coreutils-4.5.3-19.0.2.src.rpm da3fc5f54917452a4fa704330e193e24 9/en/os/i386/coreutils-4.5.3-19.0.2.i386.rpm These packages are GPG signed by Red Hat for security. Our key is available from https://access.redhat.com/security/team/key You can verify each package with the following command: rpm --checksig -v 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 8. References: CVE -CVE-2003-0853 CVE -CVE-2003-0854 9. Contact: The Red Hat security contact is . More contact details at https://www.redhat.com/en/technologies/all-products Copyright 2003 Red Hat, Inc. `. Red Hat has rolled out updated editions of fileutils and coreutils to mitigate a memory consumption denial of service flaw found in the ls utility.. Red Hat Linux, Fileutils Security, Memory DoS Fix, Coreutils Update. . LinuxSecurity.com Team
Nov 06, 2003
Red Hat
98
security advisoryRed Hat LinuxmoderateRed Hat: RHSA-2003:015-05 moderate: fileutils race condition
A race condition in the recursive use of 'rm' and 'mv' in fileutils
Feb 13, 2003
Red Hat
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