Bug 1240526 – CVE-2015-5145 Django: DoS via incorrect URL validation

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Bug 1240526 - (CVE-2015-5145) CVE-2015-5145 Django: DoS via incorrect URL validation

Summary:	CVE-2015-5145 Django: DoS via incorrect URL validation

Status:	CLOSED NOTABUG

Aliases:	CVE-2015-5145

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20150708,repor...
Keywords:	Security

Depends On:	1242350
Blocks:	1239014
	Show dependency tree / graph

Reported:	2015-07-07 03:49 EDT by Martin Prpič
Modified:	2016-04-26 12:18 EDT (History)
CC List:	17 users (show)

See Also:
Fixed In Version:	Django 1.8.3
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2015-08-25 03:30:09 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
urlvalidator-1.8.x.diff (2.64 KB, text/plain) 2015-07-07 03:55 EDT, Martin Prpič	no flags	Details
urlvalidator-master.diff (2.63 KB, text/plain) 2015-07-07 03:55 EDT, Martin Prpič	no flags	Details
urlvalidator-1.8.x.diff (3.15 KB, text/plain) 2015-07-08 09:35 EDT, Martin Prpič	no flags	Details
urlvalidator-master.diff (3.14 KB, text/plain) 2015-07-08 09:36 EDT, Martin Prpič	no flags	Details
Show Obsolete (2) Add an attachment (proposed patch, testcase, etc.)

Groups: None (edit)

Description Martin Prpič 2015-07-07 03:49:16 EDT

The following flaw was found in Django:

'django.core.validators.URLValidator' included a regular expression that was extremely slow to evaluate against certain invalid inputs. This regular expression has been simplified and optimized.

This flaw has been fixed in Django version 1.8.3.

Acknowledgements:

Red Hat would like to thank the upstream Django project for reporting this issue.

Comment 1 Martin Prpič 2015-07-07 03:55:48 EDT

Created attachment 1049118 [details]
urlvalidator-1.8.x.diff

Comment 2 Martin Prpič 2015-07-07 03:55:50 EDT

Created attachment 1049119 [details]
urlvalidator-master.diff

Comment 3 Martin Prpič 2015-07-08 09:35:39 EDT

Created attachment 1049882 [details]
urlvalidator-1.8.x.diff

Comment 4 Martin Prpič 2015-07-08 09:36:02 EDT

Created attachment 1049883 [details]
urlvalidator-master.diff

Comment 5 Kurt Seifried 2015-07-09 00:38:19 EDT

This is now public: https://www.djangoproject.com/weblog/2015/jul/08/security-releases/

Comment 7 Fedora Update System 2015-07-23 04:54:27 EDT

python-django-1.8.3-1.fc22 has been pushed to the Fedora 22 stable repository.  If problems still persist, please make note of it in this bug report.

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