Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2004.0131 -- RHSA-2004:065-01 Updated kernel packages resolve security vulnerabilities 19 February 2004 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel Publisher: Red Hat Operating System: Red Hat Linux 9 Linux Impact: Root Compromise Access Required: Existing Account CVE Names: CAN-2004-0003 CAN-2004-0010 CAN-2004-0075 CAN-2004-0077 Ref: ESB-2004.0130 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - --------------------------------------------------------------------- Red Hat Security Advisory Synopsis: Updated kernel packages resolve security vulnerabilities Advisory ID: RHSA-2004:065-01 Issue date: 2004-02-18 Updated on: 2004-02-18 Product: Red Hat Linux Keywords: VMA privesc Cross references: Obsoletes: RHSA-2003:417 CVE Names: CAN-2004-0003 CAN-2004-0010 CAN-2004-0075 CAN-2004-0077 - - --------------------------------------------------------------------- 1. Topic: Updated kernel packages that fix security vulnerabilities which may allow local users to gain root privileges are now available. These packages also resolve other minor issues. 2. Relevant releases/architectures: Red Hat Linux 9 - athlon, i386, i686 3. Problem description: The Linux kernel handles the basic functions of the operating system. Paul Starzetz discovered a flaw in return value checking in mremap() in the Linux kernel versions 2.4.24 and previous that may allow a local attacker to gain root privileges. No exploit is currently available; however this issue is exploitable. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0077 to this issue. The Vicam USB driver in kernel versions prior to 2.4.25 does not use the copy_from_user function to access userspace, which crosses security boundaries. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0075 to this issue. Arjan van de Ven discovered a flaw in ncp_lookup() in ncpfs that could allow local privilege escalation. ncpfs is only used to allow a system to mount volumes of NetWare servers or print to NetWare printers. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0010 to this issue. Alan Cox found issues in the R128 Direct Render Infrastructure that could allow local privilege escalation. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0003 to this issue. All users are advised to upgrade to these errata packages, which contain backported security patches that correct these issues. Red Hat would like to thank Paul Starzetz from ISEC for reporting the issue CAN-2004-0077. 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. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info): 113517 - RHEL 3.0 smp hang using prctl( PR_SET_PDEATHSIG 6. RPMs required: Red Hat Linux 9: SRPMS: ftp://updates.redhat.com/9/en/os/SRPMS/kernel-2.4.20-30.9.src.rpm athlon: ftp://updates.redhat.com/9/en/os/athlon/kernel-2.4.20-30.9.athlon.rpm ftp://updates.redhat.com/9/en/os/athlon/kernel-smp-2.4.20-30.9.athlon.rpm i386: ftp://updates.redhat.com/9/en/os/i386/kernel-2.4.20-30.9.i386.rpm ftp://updates.redhat.com/9/en/os/i386/kernel-BOOT-2.4.20-30.9.i386.rpm ftp://updates.redhat.com/9/en/os/i386/kernel-doc-2.4.20-30.9.i386.rpm ftp://updates.redhat.com/9/en/os/i386/kernel-source-2.4.20-30.9.i386.rpm i686: ftp://updates.redhat.com/9/en/os/i686/kernel-2.4.20-30.9.i686.rpm ftp://updates.redhat.com/9/en/os/i686/kernel-bigmem-2.4.20-30.9.i686.rpm ftp://updates.redhat.com/9/en/os/i686/kernel-smp-2.4.20-30.9.i686.rpm 7. Verification: MD5 sum Package Name - - -------------------------------------------------------------------------- 49493c8d5d9ddc2a4a9972ece04a6d8f 9/en/os/SRPMS/kernel-2.4.20-30.9.src.rpm 470b90ee4107de230f10f8a2a7d41c07 9/en/os/athlon/kernel-2.4.20-30.9.athlon.rpm 19b1e5ac305d1154272fc24f67e4b178 9/en/os/athlon/kernel-smp-2.4.20-30.9.athlon.rpm f4d5fe1bc347ce6f4cd14f4044806a1c 9/en/os/i386/kernel-2.4.20-30.9.i386.rpm 56e1dbffc0ef2cc8b9437dac17125741 9/en/os/i386/kernel-BOOT-2.4.20-30.9.i386.rpm 4e2f8db760ab6fea751199a5a65c049c 9/en/os/i386/kernel-doc-2.4.20-30.9.i386.rpm 10b2197124f4e73546b85011b2907996 9/en/os/i386/kernel-source-2.4.20-30.9.i386.rpm 59cb85fd47dad7a60c141b6514643aa2 9/en/os/i686/kernel-2.4.20-30.9.i686.rpm 6aa14556eb3c01efcca8141269b9ec94 9/en/os/i686/kernel-bigmem-2.4.20-30.9.i686.rpm cf3483753eaa7eb0eec8d5cef943f04a 9/en/os/i686/kernel-smp-2.4.20-30.9.i686.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> 8. References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0003 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0010 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0075 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0077 9. 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) iD8DBQFAM1SlXlSAg2UNWIIRAmkjAJ0ar8YWgla1PtCnIADu/mNjabPv2QCfbaYT ctffXauxk1TjsaAEgozb4vI= =Z02q - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBQDRXPih9+71yA2DNAQHk/wQAg4rQQkiF8YCE2sFQMPtihVtzfDwjTq1V v9hu0qq6t3kZc2/joIu7PhHJUuYPRcQUV741PVQgmGre/6VtIto1BDnRIEt2B5Dc MSDZn+PSlrIPEX+HZg9GSJIoAf22X8OsPdSFgkhGOzfT4l5g/t4Qd0z3CXrGmgvi Mxhv/zXhoZk= =Tp1E -----END PGP SIGNATURE-----