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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2005.0702 -- RHSA-2005:768-01 Critical: firefox security update 12 September 2005 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Firefox Publisher: Red Hat Operating System: Red Hat Enterprise Linux Desktop 4 Red Hat Enterprise Linux AS/ES/WS 4 UNIX variants Windows Impact: Execute Arbitrary Code/Commands Denial of Service Access: Remote/Unauthenticated CVE Names: CAN-2005-2871 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2005-768.html Comment: While a patch is not available at this time for some operating systems, the following workaround can be used to mitigate this problem: 1) Open Firefox and type 'about:config' (without the quotes) into the address bar. 2) In the Filter Toolbar, type 'network.enableIDN' (no quotes). 3) Right click on the network.enableIDN item and select 'Toggle' to change the value to 'false'. Please note that while this workaround does protect Firefox from the vulnerability, International Domain Names will no longer function. For most users this loss of functionality will not be noticed. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - --------------------------------------------------------------------- Red Hat Security Advisory Synopsis: Critical: firefox security update Advisory ID: RHSA-2005:768-01 Advisory URL: https://rhn.redhat.com/errata/RHSA-2005-768.html Issue date: 2005-09-09 Updated on: 2005-09-09 Product: Red Hat Enterprise Linux CVE Names: CAN-2005-2871 - - --------------------------------------------------------------------- 1. Summary: An updated firefox package that fixes as security bug is now available for Red Hat Enterprise Linux 4. This update has been rated as having critical security impact by the Red Hat Security Response Team. 2. Relevant releases/architectures: Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64 Red Hat Enterprise Linux Desktop version 4 - i386, x86_64 Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64 Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64 3. Problem description: Mozilla Firefox is an open source Web browser. A bug was found in the way Firefox processes certain international domain names. An attacker could create a specially crafted HTML file, which when viewed by the victim would cause Firefox to crash or possibly execute arbitrary code. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2005-2871 to this issue. Users of Firefox are advised to upgrade to this updated package that contains a backported patch and is not vulnerable to this issue. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. This update is available via Red Hat Network. 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/): 167930 - CAN-2005-2871 Firefox buffer overflow 6. RPMs required: Red Hat Enterprise Linux AS version 4: SRPMS: ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/firefox-1.0.6-1.4.2.src.rpm 8aa01f9cb442093b6d1f37a637130613 firefox-1.0.6-1.4.2.src.rpm i386: bbbae2299ecaad24abaa13d4c773402b firefox-1.0.6-1.4.2.i386.rpm ia64: 488e71f4d6c953f45fd6d58a680b5298 firefox-1.0.6-1.4.2.ia64.rpm ppc: 37510d0d186d37df07b40d0f9386624b firefox-1.0.6-1.4.2.ppc.rpm s390: 01a95a128cdd4bef268880e7fc9297fe firefox-1.0.6-1.4.2.s390.rpm s390x: 4f14cc8c8fadd5147a0c942b126bc84b firefox-1.0.6-1.4.2.s390x.rpm x86_64: 37e79e5af0f174711bc83475977c11d4 firefox-1.0.6-1.4.2.x86_64.rpm Red Hat Enterprise Linux Desktop version 4: SRPMS: ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/firefox-1.0.6-1.4.2.src.rpm 8aa01f9cb442093b6d1f37a637130613 firefox-1.0.6-1.4.2.src.rpm i386: bbbae2299ecaad24abaa13d4c773402b firefox-1.0.6-1.4.2.i386.rpm x86_64: 37e79e5af0f174711bc83475977c11d4 firefox-1.0.6-1.4.2.x86_64.rpm Red Hat Enterprise Linux ES version 4: SRPMS: ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/firefox-1.0.6-1.4.2.src.rpm 8aa01f9cb442093b6d1f37a637130613 firefox-1.0.6-1.4.2.src.rpm i386: bbbae2299ecaad24abaa13d4c773402b firefox-1.0.6-1.4.2.i386.rpm ia64: 488e71f4d6c953f45fd6d58a680b5298 firefox-1.0.6-1.4.2.ia64.rpm x86_64: 37e79e5af0f174711bc83475977c11d4 firefox-1.0.6-1.4.2.x86_64.rpm Red Hat Enterprise Linux WS version 4: SRPMS: ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/firefox-1.0.6-1.4.2.src.rpm 8aa01f9cb442093b6d1f37a637130613 firefox-1.0.6-1.4.2.src.rpm i386: bbbae2299ecaad24abaa13d4c773402b firefox-1.0.6-1.4.2.i386.rpm ia64: 488e71f4d6c953f45fd6d58a680b5298 firefox-1.0.6-1.4.2.ia64.rpm x86_64: 37e79e5af0f174711bc83475977c11d4 firefox-1.0.6-1.4.2.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://www.redhat.com/security/team/key/#package 7. References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2871 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://www.redhat.com/security/team/contact/ Copyright 2005 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQFDIhuDXlSAg2UNWIIRAjMnAJwIyB0mADXcVkiNsASAkX6tqGlH2gCgvZqa BCMxMmM2ueNLuRdcWSEMAko= =AtjC - -----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. 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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 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 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 iQCVAwUBQyTQ4Ch9+71yA2DNAQL9/AP/bOfYbGCIMYkAxgZ7LnXeF8uFr2+/XSGq ajrU3qg2IkCAMHeHlY/qoxQix4rMqQlS6024FN7UtUMi9p0e3wIE1mBZbnpxkl3R pYdZ4H8kp0r8Uno9vRaISQKsrSz05w3eAnWA+wyPMx1GyPMwN00HMxW7YF1/LeSX 85bept9d9Hw= =Newi -----END PGP SIGNATURE-----