Bug 40807 – squid3: Denial of service (3.2)

Bug 40807 - squid3: Denial of service (3.2)


Summary:	squid3: Denial of service (3.2)

Status:	CLOSED WONTFIX

Product:	UCS
Classification:	Unclassified
Component:	Security updates
Version:	UCS 3.2
Hardware:	Other Linux

Importance:	P4 normal (vote)
Target Milestone:	UCS 3.2-x-errata
Assigned To:	Security maintainers
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Depends on:	42563
Blocks:
	Show dependency tree / graph

Reported:	2016-03-01 12:50 CET by Arvid Requate
Modified:	2019-04-11 19:23 CEST (History)
CC List:	2 users (show)

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What kind of report is it?:	Security Issue
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Flags:	requate: Patch_Available+

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Description Arvid Requate

2016-03-01 12:50:47 CET

Upstream Debian package version 3.1.6-1.2+squeeze6 fixes these issues:

* Squid 3.x before 3.5.15 and 4.x before 4.0.7 does not properly append data to String objects, which allows remote servers to cause a denial of service (assertion failure and daemon exit) via a long string, as demonstrated by a crafted HTTP Vary header. (CVE-2016-2569)                  

* http.cc in Squid 3.x before 3.5.15 and 4.x before 4.0.7 proceeds with the storage of certain data after a response-parsing failure, which allows remote HTTP servers to cause a denial of service (assertion failure and daemon exit) via a malformed response. (CVE-2016-2571)

Comment 1 Arvid Requate

2016-03-04 09:22:19 CET

Upstream package version 3.1.6-1.2+squeeze7 reverts the patch for CVE-2016-2569 because it caused a regression.

There is another issues:

* The Edge Side Includes (ESI) parser in Squid 3.x before 3.5.15 and 4.x before 4.0.7 does not check buffer limits during XML parsing, which allows remote HTTP servers to cause a denial of service (assertion failure and daemon exit) via a crafted XML document, related to esi/CustomParser.cc and esi/CustomParser.h. (CVE-2016-2570)

Comment 2 Arvid Requate

2016-05-18 14:21:31 CEST

Upstream Debian wheezy package version 3.1.20-2.2+deb7u5 fixes these issues:

* CVE-2016-4051: Buffer overflow in cachemgr.cgi.
* CVE-2016-4052: Multiple stack-based buffer overflows by wrongly
  handling Edge Side Includes (ESI) responses.
* CVE-2016-4053: Public information disclosure of the server stack
  layout when processing ESI responses.
* CVE-2016-4054: Remote code execution when processing ESI responses.
* CVE-2016-4554: Header Smuggling issue in HTTP Request processing.
* CVE-2016-4555 and CVE-2016-4556: Denial of Service when processing

Either we extract the patches or we update the package.

Comment 3 Stefan Gohmann

2017-06-16 20:37:07 CEST

This issue has been filed against UCS 3. UCS 3 is out of the normal maintenance and many UCS components have vastly changed in UCS 4.

If this issue is still valid, please change the version to a newer UCS version otherwise this issue will be automatically closed in the next weeks.

Comment 4 Stefan Gohmann

2017-08-08 07:11:35 CEST

This issue has been filed against UCS 3.2.

UCS 3.2 is out of maintenance and many UCS components have vastly changed in later releases. Thus, this issue is now being closed.

If this issue still occurs in newer UCS versions, please use "Clone this bug" or reopen this issue. In this case please provide detailed information on how this issue is affecting you.