Bug 509375 (CVE-2009-1890)

Summary:	CVE-2009-1890 httpd: mod_proxy reverse proxy DoS (infinite loop)
Product:	[Other] Security Response	Reporter:	Tomas Hoger <thoger>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	jorton, kreilly, ldimaggi, mjc, 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:	2015-08-24 16:03:22 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:	505026, 505027, 509781, 509782, 509783
Bug Blocks:

Description Tomas Hoger 2009-07-02 14:15:12 UTC

A DoS flaw was fixed in httpd's mod_proxy.  Problem affects httpd 2.2.x+ and mod_proxy in reverse proxy setups.

Upstream commit:

  http://svn.apache.org/viewvc?view=rev&revision=790587

     Fix a potential Denial-of-Service attack against mod_proxy in a
     reverse proxy configuration, where a remote attacker can force a
     proxy process to consume CPU time indefinitely.

Upstream test case:

  http://svn.apache.org/viewvc?view=rev&revision=790589

Comment 2 Vincent Danen 2009-07-06 21:07:35 UTC

Common Vulnerabilities and Exposures assigned an identifier CVE-2009-1890 to
the following vulnerability:

Name: CVE-2009-1890
URL: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1890
Assigned: 20090602
Reference: CONFIRM: http://svn.apache.org/viewvc/httpd/httpd/trunk/CHANGES?r1=790587&r2=790586&pathrev=790587
Reference: CONFIRM: http://svn.apache.org/viewvc/httpd/httpd/trunk/CHANGES?revision=790587
Reference: CONFIRM: http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/proxy/mod_proxy_http.c?r1=790587&r2=790586&pathrev=790587
Reference: CONFIRM: http://svn.apache.org/viewvc?view=rev&revision=790587
Reference: SECUNIA:35691
Reference: URL: http://secunia.com/advisories/35691

The stream_reqbody_cl function in mod_proxy_http.c in the mod_proxy
module in the Apache HTTP Server before 2.3.3, when a reverse proxy is
configured, does not properly handle an amount of streamed data that
exceeds the Content-Length value, which allows remote attackers to
cause a denial of service (CPU consumption) via crafted requests.

Comment 5 errata-xmlrpc 2009-07-09 16:10:19 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2009:1148 https://rhn.redhat.com/errata/RHSA-2009-1148.html

Comment 6 errata-xmlrpc 2009-07-14 19:07:03 UTC

This issue has been addressed in following products:

  JBEWS 1.0.0 for RHEL 5

Via RHSA-2009:1155 https://rhn.redhat.com/errata/RHSA-2009-1155.html

Comment 7 errata-xmlrpc 2009-07-14 19:07:57 UTC

This issue has been addressed in following products:

  Red Hat Web Application Stack for RHEL 5

Via RHSA-2009:1156 https://rhn.redhat.com/errata/RHSA-2009-1156.html

Comment 8 errata-xmlrpc 2009-07-17 13:13:37 UTC

This issue has been addressed in following products:

  JBEWS 1.0.0 for RHEL 4

Via RHSA-2009:1160 https://rhn.redhat.com/errata/RHSA-2009-1160.html

Comment 9 Fedora Update System 2009-08-31 23:39:03 UTC

httpd-2.2.13-1.fc11 has been pushed to the Fedora 11 stable repository.  If problems still persist, please make note of it in this bug report.