Bug 1025127 (CVE-2013-4484)

Summary:	CVE-2013-4484 varnish: denial of service handling certain GET requests
Product:	[Other] Security Response	Reporter:	Murray McAllister <mmcallis>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	carnil, ingvar, jrusnack, tis, vdanen
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2014-11-26 13:52:00 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1025128, 1025129
Bug Blocks:

Description Murray McAllister 2013-10-31 04:55:40 UTC

Varnish Cache a high-performance HTTP accelerator. A denial of service flaw was found in the way Varnish Cache handled certain GET requests when using certain configurations. A remote attacker could use this flaw to crash a worker process.

References:

https://www.varnish-cache.org/trac/ticket/1367
https://www.varnish-cache.org/trac/changeset/4bd5b7991bf602a6c46dd0d65fc04d4b8d9667a6
https://www.varnish-cache.org/trac/changeset/9c9a9904bdb56b62017f338baf9c8e906b88dcac

Comment 1 Murray McAllister 2013-10-31 04:57:22 UTC

Created varnish tracking bugs for this issue:

Affects: fedora-all [bug 1025128]
Affects: epel-all [bug 1025129]

Comment 2 Murray McAllister 2013-10-31 04:59:05 UTC

I was not familiar enough with varnish to reproduce this issue, but the Fedora and EPEL packages are missing the commit from comment #0

Comment 3 Ingvar Hagelund 2013-11-05 11:59:41 UTC

For Fedora, I'll just wait for 3.0.5, I think. f18 and f19 have 3.0.3. 3.0.4 is commited (but not built) to rawhide.

I have produced a backport to varnish-2.0.6 (epel 5) of this, available here: 

http://users.linpro.no/ingvar/varnish/varnish.fix_CVE-2013-4484.patch.txt

I'll try to get upstream to validate it.

If it goes through, I'll do one for epel 6 too.

Ingvar

Comment 4 Ingvar Hagelund 2014-11-26 13:52:00 UTC

For some reason, this bug is still open.

This was fixed in
varnish-2.0.6-4.el5
varnish-2.1.5-5.el6
varnish-3.0.5-1.fc18
varnish-3.0.5-1.fc19

As all depency bugs were closed long time ago, I close this one as well.

Ingvar