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OVAL

ELSA-2013-0505 -- Oracle squid

ID: oval:org.secpod.oval:def:1500055Date: (C)2013-03-20   (M)2023-02-20
Class: PATCHFamily: unix




Updated squid packages that fix one security issue and several bugs are nowavailable for Red Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. A Common Vulnerability Scoring System base score,which gives a detailed severity rating, is available from the CVE link inthe References section. Squid is a high-performance proxy caching server for web clients thatsupports FTP, Gopher, and HTTP data objects.A denial of service flaw was found in the way the Squid Cache Managerprocessed certain requests. A remote attacker who is able to access theCache Manager CGI could use this flaw to cause Squid to consume anexcessive amount of memory. This update also fixes the following bugs:* Due to a bug in the ConnStateData::noteMoreBodySpaceAvailable function,child processes of Squid terminated upon encountering a failed assertion.An upstream patch has been provided and Squid child processes no longerterminate. * Due to an upstream patch, which renamed the HTTP header controllingpersistent connections from "Proxy-Connection" to "Connection", the NTLMpass-through authentication does not work, thus preventing login. Thisupdate adds the new "http10" option to the squid.conf file, which can beused to enable the change in the patch. This option is set to "off" bydefault. When set to "on", the NTLM pass-through authentication worksproperly, thus allowing login attempts to succeed. * When the IPv6 protocol was disabled and Squid tried to handle an HTTP GETrequest containing an IPv6 address, the Squid child process terminated dueto signal 6. This bug has been fixed and such requests are now handled asexpected. * The old "stale if hit" logic did not account for cases where the storedstale response became fresh due to a successful re-validation with theorigin server. Consequently, incorrect warning messages were returned. Now,Squid no longer marks elements as stale in the described scenario.* When squid packages were installed before samba-winbind, the wbpriv groupdid not include Squid. Consequently, NTLM authentication calls failed. Now,Squid correctly adds itself into the wbpriv group if samba-winbind isinstalled before Squid, thus fixing this bug. * In FIPS mode, Squid was using private MD5 hash functions for userauthentication and network access. As MD5 is incompatible with FIPS mode,Squid could fail to start. This update limits the use of the private MD5functions to local disk file hash identifiers, thus allowing Squid to workin FIPS mode. * Under high system load, the squid process could terminate unexpectedlywith a segmentation fault during reboot. This update provides better memoryhandling during reboot, thus fixing this bug. * Squid incorrectly set the timeout limit for client HTTP connections withthe value for server-side connections, which is much higher, thus creatingunnecessary delays. With this update, Squid uses a proper value for theclient timeout limit. * Squid did not properly release allocated memory when generating errorpage contents, which caused memory leaks. Consequently, the Squid proxyserver consumed a lot of memory within a short time period. This updatefixes this memory leak. * Squid did not pass the ident value to a URL rewriter that was configured using the "url_rewrite_program" directive. Consequently, the URL rewriterreceived the dash character as the user value instead of the correctuser name. Now, the URL rewriter receives the correct user name in thedescribed scenario. * Squid, used as a transparent proxy, can only handle the HTTP protocol.Previously, it was possible to define a URL in which the access protocolcontained the asterisk character or an unknown protocol namespace URI.Consequently, an "Invalid URL" error message was logged to access.logduring reload. All users of squid are advised to upgrade to these updated packages, whichfix these issues. After installing this update, the squid service will berestarted automatically.

Platform:
Oracle Linux 6
Product:
squid
Reference:
ELSA-2013-0505
CVE-2012-5643
CVE    1
CVE-2012-5643
CPE    87
cpe:/a:squid-cache:squid:3.0.stable11:rc1
cpe:/a:squid-cache:squid:3.0:-:pre1
cpe:/a:squid-cache:squid:3.0:-:pre2
cpe:/a:squid-cache:squid:3.0:-:pre3
...

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