Bug 453550 (CVE-2008-2942)

Summary:	CVE-2008-2942 mercurial: insufficient input validationn allowing file renames out of repository
Product:	[Other] Security Response	Reporter:	Tomas Hoger <thoger>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	dennis, mmcgrath, ndbecker2
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
URL:	http://nvd.nist.gov/nvd.cfm?cvename=CVE-2008-2942
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2009-04-15 07:17:36 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:	464632
Bug Blocks:

Description Tomas Hoger 2008-07-01 09:50:11 UTC

Common Vulnerabilities and Exposures assigned an identifier CVE-2008-2942 to the following vulnerability:

Directory traversal vulnerability in patch.py in Mercurial 1.0.1
allows user-assisted attackers to modify arbitrary files via ".." (dot
dot) sequences in a patch file.

Upstream patch (+ test case):
http://www.selenic.com/hg/rev/87c704ac92d4

References:
http://www.openwall.com/lists/oss-security/2008/06/30/1

Comment 1 Tomas Hoger 2008-07-01 09:54:12 UTC

Test case from upstream commit:

echo % 'test paths outside repo root'
mkdir outside
touch outside/foo
hg init inside
cd inside
hg import - <<EOF
diff --git a/a b/b
rename from ../outside/foo
rename to bar
EOF
cd ..

This should affect all Fedora / EPEL versions.  Security implications are quite
minimal though (see also oss-security thread).

Comment 2 Dennis Gilmore 2009-03-19 19:38:40 UTC

mercurial-1.2-2.el4.1 and mercurial-1.2-2.el5.1  built and on the way to testing