Bug 1329126 (CVE-2016-4051, SQUID-2016:5) - CVE-2016-4051 squid: buffer overflow in cachemgr.cgi
Summary: CVE-2016-4051 squid: buffer overflow in cachemgr.cgi
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2016-4051, SQUID-2016:5
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1329144 1330572 1330573 1330574 1330575 1330576 1330577
Blocks: 1329143
TreeView+ depends on / blocked
 
Reported: 2016-04-21 09:21 UTC by Andrej Nemec
Modified: 2021-02-17 04:02 UTC (History)
7 users (show)

Fixed In Version: squid 3.5.17, squid 4.0.9
Doc Type: Bug Fix
Doc Text:
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.
Clone Of:
Environment:
Last Closed: 2016-06-09 12:43:56 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2016:1138 0 normal SHIPPED_LIVE Moderate: squid security update 2016-05-31 09:56:15 UTC
Red Hat Product Errata RHSA-2016:1139 0 normal SHIPPED_LIVE Moderate: squid security update 2016-05-31 09:42:41 UTC
Red Hat Product Errata RHSA-2016:1140 0 normal SHIPPED_LIVE Moderate: squid34 security update 2016-05-31 09:56:07 UTC

Description Andrej Nemec 2016-04-21 09:21:57 UTC 
Due to incorrect buffer management Squid cachemgr.cgi tool is
vulnerable to a buffer overflow when processing remotely supplied
inputs relayed to it from Squid.

External references:

http://www.squid-cache.org/Advisories/SQUID-2016_5.txt

Upstream fixes:

[RHEL-7]
www.squid-cache.org/Versions/v3/3.3/changesets/SQUID-2016_5.patch

[Fedora-23]
http://www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2016_5.patch

[Fedora-22]
http://www.squid-cache.org/Versions/v3/3.4/changesets/SQUID-2016_5.patch
Comment 1 Andrej Nemec 2016-04-21 09:47:17 UTC 
Created squid tracking bugs for this issue:

Affects: fedora-all [bug 1329144]
Comment 6 errata-xmlrpc 2016-05-31 05:42:52 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:1139 https://access.redhat.com/errata/RHSA-2016:1139
Comment 7 errata-xmlrpc 2016-05-31 05:56:35 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2016:1140 https://access.redhat.com/errata/RHSA-2016:1140
Comment 8 errata-xmlrpc 2016-05-31 05:57:31 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2016:1138 https://access.redhat.com/errata/RHSA-2016:1138
Comment 9 Fedora Update System 2016-07-12 20:28:01 UTC 
squid-3.5.19-2.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
Comment 10 Fedora Update System 2016-07-12 23:52:43 UTC 
squid-3.5.10-4.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
Comment 12 Cedric Buissart 2016-08-04 13:41:45 UTC 
Additional Note:
It was found that RHSA-2016:1138 (squid-3.1.23-16.el6_8.4 on RHEL-6.8.z) did not fully fixed CVE-2016-4051.
A new fix is available, under the name CVE-2016-5408, and released via errata RHSA-2016:1573
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