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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2005.0220 -- RHSA-2005:201-01 Moderate: squid security update 17 March 2005 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: squid Publisher: Red Hat Operating System: Red Hat Enterprise Linux AS/ES/WS 4 Red Hat Desktop version 4 Linux variants UNIX variants Impact: Denial of Service Access: Remote/Unauthenticated CVE Names: CAN-2005-0446 Ref: ESB-2005.0201 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2005-201.html Comment: This Red Hat advisory is for Enterprise Linux version 4 only. The same vulnerability may exist in other versions, and administrators are advised to check the vendor's web site for further details. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - --------------------------------------------------------------------- Red Hat Security Advisory Synopsis: Moderate: squid security update Advisory ID: RHSA-2005:201-01 Advisory URL: https://rhn.redhat.com/errata/RHSA-2005-201.html Issue date: 2005-03-16 Updated on: 2005-03-16 Product: Red Hat Enterprise Linux CVE Names: CAN-2005-0446 - - --------------------------------------------------------------------- 1. Summary: An updated squid package that fixes a denial of service issue is now available for Red Hat Enterprise Linux 4. This update has been rated as having moderate 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: Squid is a full-featured Web proxy cache. A bug was found in the way Squid handles fully qualified domain name (FQDN) lookups. A malicious DNS server could crash Squid by sending a carefully crafted DNS response to an FQDN lookup. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2005-0446 to this issue. This erratum also includes two minor patches to the LDAP helpers. One corrects a slight malformation in ldap search requests (although all known LDAP servers accept the requests). The other adds documentation for the -v option to the ldap helpers. Users of Squid should upgrade to this updated package, which contains a backported patch, and is not vulnerable to this issue. 4. Solution: Before applying this update, make sure that all previously-released errata relevant to your system have been applied. Use Red Hat Network to download and update your packages. To launch the Red Hat Update Agent, use the following command: up2date For information on how to install packages manually, refer to the following Web page for the System Administration or Customization guide specific to your system: http://www.redhat.com/docs/manuals/enterprise/ 5. Bug IDs fixed (http://bugzilla.redhat.com/): 148882 - CAN-2005-0446 Squid DoS from bad DNS response 6. RPMs required: Red Hat Enterprise Linux AS version 4: SRPMS: ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/squid-2.5.STABLE6-3.4E.5.src.rpm 211b70fedb9069adb1eec627a4f8e707 squid-2.5.STABLE6-3.4E.5.src.rpm i386: c67133061261fcf5c3cac5345c7222fa squid-2.5.STABLE6-3.4E.5.i386.rpm ia64: 99d6fd73bb7d277fc679cc00d9b19e7d squid-2.5.STABLE6-3.4E.5.ia64.rpm ppc: 4c144b5a2171d36b1e6b5992f4912775 squid-2.5.STABLE6-3.4E.5.ppc.rpm s390: 22e53afff8b89dda33a0e208f2eb38cf squid-2.5.STABLE6-3.4E.5.s390.rpm s390x: 00f6e8d80524790bc43ad89bf080cf86 squid-2.5.STABLE6-3.4E.5.s390x.rpm x86_64: 644f7b720340cfc60f5f62fddc595560 squid-2.5.STABLE6-3.4E.5.x86_64.rpm Red Hat Enterprise Linux Desktop version 4: SRPMS: ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/squid-2.5.STABLE6-3.4E.5.src.rpm 211b70fedb9069adb1eec627a4f8e707 squid-2.5.STABLE6-3.4E.5.src.rpm i386: c67133061261fcf5c3cac5345c7222fa squid-2.5.STABLE6-3.4E.5.i386.rpm x86_64: 644f7b720340cfc60f5f62fddc595560 squid-2.5.STABLE6-3.4E.5.x86_64.rpm Red Hat Enterprise Linux ES version 4: SRPMS: ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/squid-2.5.STABLE6-3.4E.5.src.rpm 211b70fedb9069adb1eec627a4f8e707 squid-2.5.STABLE6-3.4E.5.src.rpm i386: c67133061261fcf5c3cac5345c7222fa squid-2.5.STABLE6-3.4E.5.i386.rpm ia64: 99d6fd73bb7d277fc679cc00d9b19e7d squid-2.5.STABLE6-3.4E.5.ia64.rpm x86_64: 644f7b720340cfc60f5f62fddc595560 squid-2.5.STABLE6-3.4E.5.x86_64.rpm Red Hat Enterprise Linux WS version 4: SRPMS: ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/squid-2.5.STABLE6-3.4E.5.src.rpm 211b70fedb9069adb1eec627a4f8e707 squid-2.5.STABLE6-3.4E.5.src.rpm i386: c67133061261fcf5c3cac5345c7222fa squid-2.5.STABLE6-3.4E.5.i386.rpm ia64: 99d6fd73bb7d277fc679cc00d9b19e7d squid-2.5.STABLE6-3.4E.5.ia64.rpm x86_64: 644f7b720340cfc60f5f62fddc595560 squid-2.5.STABLE6-3.4E.5.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://www.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE8-dns_assert http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0446 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) iD8DBQFCOFAJXlSAg2UNWIIRAuBdAJ4kSrxHyDORDoNw64Kr2oEzSSRP0QCgh6oA ALL9Kulaye09wWTLEsIWbrA= =V/Cz - -----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 iQCVAwUBQjjHWSh9+71yA2DNAQLIeAQAl4wW9b3q4xA8BT9CVi22hN0BzlqkSoSU 3SMkwMXOm0VutBgU73A/xANJSq8QXdZVodIKWIZix12iL1215lojfu/5RfB8Qhq/ ePKgdnoHA8dGq86DIqASENnK/G2B8tJjoi7MTJ3CBo6TEhByvqdQSQIGxLYCg9sz +Zj+pdMycDs= =HKEs -----END PGP SIGNATURE-----