Patch  oval:com.redhat.rhsa:def:20161139
RHSA-2016:1139: squid security update (Moderate)  

Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.
Security Fix(es):
* A buffer overflow flaw was found in the way the Squid cachemgr.cgi utility processed remotely relayed Squid input. When the CGI interface utility is used, a remote attacker could possibly use this flaw to execute arbitrary code. (CVE-2016-4051)
* Buffer overflow and input validation flaws were found in the way Squid processed ESI responses. If Squid was used as a reverse proxy, or for TLS/HTTPS interception, a remote attacker able to control ESI components on an HTTP server could use these flaws to crash Squid, disclose parts of the stack memory, or possibly execute arbitrary code as the user running Squid. (CVE-2016-4052, CVE-2016-4053, CVE-2016-4054)
* An input validation flaw was found in the way Squid handled intercepted HTTP Request messages. An attacker could use this flaw to bypass the protection against issues related to CVE-2009-0801, and perform cache poisoning attacks on Squid. (CVE-2016-4553)
* An input validation flaw was found in Squid's mime_get_header_field() function, which is used to search for headers within HTTP requests. An attacker could send an HTTP request from the client side with specially crafted header Host header that bypasses same-origin security protections, causing Squid operating as interception or reverse-proxy to contact the wrong origin server. It could also be used for cache poisoning for client not following RFC 7230. (CVE-2016-4554)
* A NULL pointer dereference flaw was found in the way Squid processes ESI responses. If Squid was used as a reverse proxy or for TLS/HTTPS interception, a malicious server could use this flaw to crash the Squid worker process. (CVE-2016-4555)
* An incorrect reference counting flaw was found in the way Squid processes ESI responses. If Squid is configured as reverse-proxy, for TLS/HTTPS interception, an attacker controlling a server accessed by Squid, could crash the squid worker, causing a Denial of Service attack. (CVE-2016-4556)
Create Date: 2016-05-31 Last Update Date: 2016-05-31

Affected Platforms/Products

Affected Products (CPE + CVE references)
Platforms: unix (from OVAL definitions)
  • Red Hat Enterprise Linux 7

References

Total : 17 Click here to view references

Criteria

The patch should be installed
IF : Any one of the following are true
IF : Red Hat Enterprise Linux must be installed
WARNING! Unknown test oval:com.redhat.rhba:tst:20070026004. Please see help for possible reasons
IF : All of the following are true
IF : Red Hat Enterprise Linux 7 is installed
WARNING! Unknown test oval:com.redhat.rhba:tst:20150364027. Please see help for possible reasons
IF : Any one of the following are true
IF : All of the following are true
IF : squid is signed with Red Hat redhatrelease2 key
WARNING! Unknown test oval:com.redhat.rhsa:tst:20110545002. Please see help for possible reasons
IF : squid is earlier than 7:3.3.8-26.el7_2.3
WARNING! Unknown test oval:com.redhat.rhsa:tst:20161139003. Please see help for possible reasons
IF : All of the following are true
IF : squid-sysvinit is earlier than 7:3.3.8-26.el7_2.3
WARNING! Unknown test oval:com.redhat.rhsa:tst:20161139001. Please see help for possible reasons
IF : squid-sysvinit is signed with Red Hat redhatrelease2 key
WARNING! Unknown test oval:com.redhat.rhsa:tst:20141147002. Please see help for possible reasons

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