CentOS Errata and Security Advisory CESA-2005:766
Squid is a full-featured Web proxy cache.
A bug was found in the way Squid displays error messages. A remote attacker could submit a request containing an invalid hostname which would result in Squid displaying a previously used error message. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-2479 to this issue.
Two denial of service bugs were found in the way Squid handles malformed requests. A remote attacker could submit a specially crafted request to Squid that would cause the server to crash. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CAN-2005-2794 and CAN-2005-2796 to these issues.
Please note that CAN-2005-2796 does not affect Red Hat Enterprise Linux 2.1
Users of Squid should upgrade to this updated package that contains backported patches, and is not vulnerable to these issues.
Merged security bulletin from advisories: http://lists.centos.org/pipermail/centos-announce/2005-September/012164.html http://lists.centos.org/pipermail/centos-announce/2005-September/012165.html http://lists.centos.org/pipermail/centos-announce/2005-September/012166.html http://lists.centos.org/pipermail/centos-announce/2005-September/012167.html http://lists.centos.org/pipermail/centos-announce/2005-September/012168.html http://lists.centos.org/pipermail/centos-announce/2005-September/012172.html http://lists.centos.org/pipermail/centos-announce/2005-September/012173.html http://lists.centos.org/pipermail/centos-announce/2005-September/012174.html
Affected packages: squid
Upstream details at: https://rhn.redhat.com/errata/RHSA-2005-766.html