Bug 800064 (CVE-2012-1109)

Summary:	CVE-2012-1109 mwlib: denial of service when parsing #iferror magic functions
Product:	[Other] Security Response	Reporter:	Vincent Danen <vdanen>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	fedora-jasper, ian, linux.n.pkd, stickster
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:	2021-10-19 21:51:48 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:	800066, 800067
Bug Blocks:

Description Vincent Danen 2012-03-05 17:02:42 UTC

It was reported [1],[2] that mwlib suffered from a flaw that could allow a remote attacker to perform a denial of service attack on a mwlib installation by forcing it to parse a specially-crafted #iferror magic function.  This has been corrected [3] in upstream version 0.13.5.

[1] http://groups.google.com/group/mwlib/browse_thread/thread/c2bd1cee77a8a79?hl=en
[2] http://www.google.com/url?sa=D&q=https://github.com/pediapress/mwlib/pull/10&usg=AFQjCNHgoXQUYFtEj0L8VP5K8Xn_GoTOyw
[3] https://github.com/pediapress/mwlib/commit/aa987c281c10e29f26aa0faa21c04f3bb1167fde

Comment 1 Vincent Danen 2012-03-05 17:03:54 UTC

Created python-mwlib tracking bugs for this issue

Affects: fedora-all [bug 800066]
Affects: epel-5 [bug 800067]

Comment 2 Vincent Danen 2012-03-05 17:07:39 UTC

CVE request: http://www.openwall.com/lists/oss-security/2012/03/05/16