Home / mailings

PDF

[gentoo-announce] [ GLSA 201707-12 ] MAN DB: Privilege escalation

Posted on 09 July 2017
Gentoo-announce

This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--SRwdwqTjnO7CxAwFAPSvGumoiH0DesP7V
Content-Type: multipart/mixed; boundary="mFG8RrCbbVuQclL7gcQUNGW43ug09fbA5";
protected-headers="v1"
From: Thomas Deutschmann <whissi@gentoo.org>
Reply-To: security@gentoo.org
To: gentoo-announce@lists.gentoo.org
Message-ID: <9c789c81-9461-f8c4-cbc0-c798e6bf5cbd@gentoo.org>
Subject: [ GLSA 201707-12 ] MAN DB: Privilege escalation

--mFG8RrCbbVuQclL7gcQUNGW43ug09fbA5
Content-Type: text/plain; charset=utf-8
Content-Language: en-US
Content-Transfer-Encoding: quoted-printable

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 201707-12
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
https://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Severity: High
Title: MAN DB: Privilege escalation
Date: July 09, 2017
Bugs: #602588
ID: 201707-12

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========
A vulnerability in MAN DB allows local users to gain root privileges.

Background
==========
MAN DB is a man replacement that utilizes BerkelyDB instead of flat
files.

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 sys-apps/man-db < 2.7.6.1-r2 >= 2.7.6.1-r2

Description
===========
The /var/cache/man directory as part of the MAN DB package has group
permissions set to root.

Impact
======
A local user who does not belong to the root group, but has the ability
to modify the /var/cache/man directory can escalate privileges to the
group root.

Workaround
==========
There is no known workaround at this time.

Resolution
==========
All MAN DB users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-apps/man-db-2.7.6.1-r2"

References
==========
[ 1 ] CVE-2015-1336
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-1336

Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/201707-12

Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======
Copyright 2017 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5


--mFG8RrCbbVuQclL7gcQUNGW43ug09fbA5--

--SRwdwqTjnO7CxAwFAPSvGumoiH0DesP7V
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"

 

TOP