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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2011.0538 Low: squid security and bug fix update 23 May 2011 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: squid Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 6 Red Hat Enterprise Linux WS/Desktop 6 Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2010-3072 Reference: ESB-2010.0964 ESB-2010.0846 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2011-0545.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Low: squid security and bug fix update Advisory ID: RHSA-2011:0545-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2011-0545.html Issue date: 2011-05-19 CVE Names: CVE-2010-3072 ===================================================================== 1. Summary: An updated squid package that fixes one security issue and two bugs is now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having low security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 3. Description: Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects. It was found that string comparison functions in Squid did not properly handle the comparisons of NULL and empty strings. A remote, trusted web client could use this flaw to cause the squid daemon to crash via a specially-crafted request. (CVE-2010-3072) This update also fixes the following bugs: * A small memory leak in Squid caused multiple "ctx: enter level" messages to be logged to "/var/log/squid/cache.log". This update resolves the memory leak. (BZ#666533) * This erratum upgrades Squid to upstream version 3.1.10. This upgraded version supports the Google Instant service and introduces various code improvements. (BZ#639365) Users of squid should upgrade to this updated package, which resolves these issues. After installing this update, the squid service will be restarted automatically. 4. Solution: Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259 5. Bugs fixed (http://bugzilla.redhat.com/): 630444 - CVE-2010-3072 Squid: Denial of service due internal error in string handling (SQUID-2010:3) 639365 - Rebase squid to version 3.1.10 666533 - small memleak in squid-3.1.4 6. Package List: Red Hat Enterprise Linux Server (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/squid-3.1.10-1.el6.src.rpm i386: squid-3.1.10-1.el6.i686.rpm squid-debuginfo-3.1.10-1.el6.i686.rpm ppc64: squid-3.1.10-1.el6.ppc64.rpm squid-debuginfo-3.1.10-1.el6.ppc64.rpm s390x: squid-3.1.10-1.el6.s390x.rpm squid-debuginfo-3.1.10-1.el6.s390x.rpm x86_64: squid-3.1.10-1.el6.x86_64.rpm squid-debuginfo-3.1.10-1.el6.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/squid-3.1.10-1.el6.src.rpm i386: squid-3.1.10-1.el6.i686.rpm squid-debuginfo-3.1.10-1.el6.i686.rpm x86_64: squid-3.1.10-1.el6.x86_64.rpm squid-debuginfo-3.1.10-1.el6.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://access.redhat.com/security/team/key/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2010-3072.html https://access.redhat.com/security/updates/classification/#low 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2011 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFN1QoVXlSAg2UNWIIRAus+AJ9KG64p9VxJTdV0rL1nV2EmGfd1dgCeJv+d n0b5YLJ5FOoorECMonve9XE= =r2vM - -----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. NOTE: Third Party Rights 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 =========================================================================== 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 iD8DBQFN2bp5/iFOrG6YcBERAnLoAKCJAUrwrt6Zj8UEASi7+9uHN3dPzwCbBZKC 4bC6MCsC2ZgIfEufrTEonic= =XITZ -----END PGP SIGNATURE-----