Bug 732607 – CVE-2011-3145 ecryptfs-utils: incorrect mtab group ownership

Bug 732607 - (CVE-2011-3145) CVE-2011-3145 ecryptfs-utils: incorrect mtab group ownership

Summary:	CVE-2011-3145 ecryptfs-utils: incorrect mtab group ownership

Status:	CLOSED ERRATA

Aliases:	CVE-2011-3145

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:	public=20110823,reported=20110822,sou...
Keywords:	Security

Depends On:	729470 729471 729472 729473
Blocks:	729476
	Show dependency tree / graph

Reported:	2011-08-23 01:20 EDT by Huzaifa S. Sidhpurwala
Modified:	2015-11-24 09:40 EST (History)
CC List:	2 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2012-08-03 04:30:47 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)
proposed patch (2.43 KB, patch) 2011-08-23 01:25 EDT, Huzaifa S. Sidhpurwala	no flags	Details \| Diff
Add an attachment (proposed patch, testcase, etc.)

Groups: None (edit)

Description Huzaifa S. Sidhpurwala 2011-08-23 01:20:06 EDT

When mount.ecrpytfs_private calls set setreuid() it doesn't also set the
effective group id. So when it creates the new version, mtab.tmp, it's
created with the group id of the user running mount.ecryptfs_private.

Reference: 
https://launchpad.net/bugs/830850

Comment 1 Huzaifa S. Sidhpurwala 2011-08-23 01:25:50 EDT

Created attachment 519393 [details]
proposed patch

Comment 3 Tomas Hoger 2011-08-24 03:26:40 EDT

Public now via Ubuntu advisory:
  http://www.ubuntu.com/usn/usn-1196-1/

Comment 6 errata-xmlrpc 2011-08-31 15:41:06 EDT

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 6

Via RHSA-2011:1241 https://rhn.redhat.com/errata/RHSA-2011-1241.html

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