Bug 709097 (CVE-2011-2167) - CVE-2011-2167 dovecot: directory traversal due to not obeying chroot directive
Summary: CVE-2011-2167 dovecot: directory traversal due to not obeying chroot directive
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2011-2167
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 709108 885557
Blocks: 712345 855229
TreeView+ depends on / blocked
 
Reported: 2011-05-30 15:22 UTC by Vincent Danen
Modified: 2021-02-24 15:22 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2013-02-22 04:12:17 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2013:0520 0 normal SHIPPED_LIVE Low: dovecot security and bug fix update 2013-02-20 21:28:52 UTC

Description Vincent Danen 2011-05-30 15:22:41 UTC 
Common Vulnerabilities and Exposures assigned an identifier CVE-2011-2167 to
the following vulnerability:

Name: CVE-2011-2167
URL: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2167
Assigned: 20110524
Reference: http://dovecot.org/pipermail/dovecot/2011-May/059085.html
Reference: http://openwall.com/lists/oss-security/2011/05/18/4
Reference: http://www.dovecot.org/doc/NEWS-2.0

script-login in Dovecot 2.0.x before 2.0.13 does not follow the chroot
configuration setting, which might allow remote authenticated users to
conduct directory traversal attacks by leveraging a script.
Comment 1 Vincent Danen 2011-05-30 16:23:13 UTC 
Created dovecot tracking bugs for this issue

Affects: fedora-all [bug 709108]
Comment 2 Huzaifa S. Sidhpurwala 2011-08-05 04:55:08 UTC 
Looking at the upstream NEWS file, i dont see this bug/issue being seperately mentioned.
Also looking at the timeline it seems the following patch is the only one which would fit the bill, not sure if its applicable though:

http://hg.dovecot.org/dovecot-2.0/diff/a2d57b43ccb2/src/util/script-login.c
Comment 3 Huzaifa S. Sidhpurwala 2011-08-05 04:56:21 UTC 
Michal,

Can you please take a look at this issue?
Comment 7 Michal Hlavinka 2011-08-08 14:38:09 UTC 
(In reply to comment #3)
> Michal,
> 
> Can you please take a look at this issue?

this and CVE-2011-2166 have the same fix from comment #2, but this fix causes some regressions. Upstream knows about this and promised to fix it for next version. That fix is not available atm.
Comment 8 Huzaifa S. Sidhpurwala 2011-08-09 03:13:04 UTC 
(In reply to comment #7)
> (In reply to comment #3)
> > Michal,
> > 
> > Can you please take a look at this issue?
> 
> this and CVE-2011-2166 have the same fix from comment #2, but this fix causes
> some regressions. Upstream knows about this and promised to fix it for next
> version. That fix is not available atm.

Ok, upstream just confirmed this. I was under the impression that Timo just mentioned CVE-2011-2166.
Comment 9 Huzaifa S. Sidhpurwala 2011-08-09 03:13:15 UTC 
Upstream has confirmed that this particular fix, will break current
configurations for the dovecot server, which will only be fixed in 2.0.14

Reference:
http://www.mail-archive.com/dovecot@dovecot.org/msg38350.html
Comment 10 Huzaifa S. Sidhpurwala 2011-09-01 05:22:48 UTC 
Dovecot 2.0.14 is released:
http://dovecot.org/list/dovecot-news/2011-August/000193.html

The following in the Changelog suggests that comment #4 has been addressed:

script-login attempted an unnecessary config lookup, which usually
failed with "Permission denied"
Comment 13 errata-xmlrpc 2013-02-21 10:35:28 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2013:0520 https://rhn.redhat.com/errata/RHSA-2013-0520.html
Comment 14 Huzaifa S. Sidhpurwala 2013-02-22 04:23:48 UTC 
Statement:

(none)
Note You need to log in before you can comment on or make changes to this bug.