Bug 640401 (CVE-2010-3706)

Summary:	CVE-2010-3706 Dovecot: Failed to update ACL cache for mailboxes stored in private namespace
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	mhlavink
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:	2019-06-10 10:57:19 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:

Description Jan Lieskovsky 2010-10-05 18:24:35 UTC

A security flaw was found in the way Dovecot IMAP server
updated own Access Control List (ACL) cache for rules
specifying user rights on mailboxes stored in the private
namespace of the particular user. A local attacker could
use this flaw to prevent the mailbox administrator to restrict
the ACL rule via a symlink attack on the shared mailbox.

References:
[1] http://www.dovecot.org/list/dovecot/2010-October/053450.html
[2] http://www.dovecot.org/list/dovecot/2010-October/053452.html
[3] http://wiki.dovecot.org/ACL

Comment 3 Huzaifa S. Sidhpurwala 2010-11-17 03:55:58 UTC

Statement:

Not vulnerable. This issue did not affect the versions of dovecot as
shipped with Red Hat Enterprise Linux 4, 5 or 6.