English | Deutsch | Español | Português
 UserID:
 Passwd:
new user
 About:   Dedicated  | Advanced  | Standard  | Recurring  | No Risk  | Desktop  | Basic  | Single  | Security Seal  | FAQ
  Price/Feature Summary  | Order  | New Vulnerabilities  | Confidentiality  | Vulnerability Search
 Vulnerability   
Search   
    Search 143769 CVE descriptions
and 71225 test descriptions,
access 10,000+ cross references.
Tests   CVE   All  

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 200804-16
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                            http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  Severity: High
     Title: rsync: Execution of arbitrary code
      Date: April 17, 2008
      Bugs: #216887
        ID: 200804-16

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

Synopsis
========

A buffer overflow in rsync might lead to the remote execution of
arbitrary code when extended attributes are being used.

Background
==========

rsync is a file transfer program to keep remote directories
synchronized.

Affected packages
=================

    -------------------------------------------------------------------
     Package         /  Vulnerable  /                       Unaffected
    -------------------------------------------------------------------
  1  net-misc/rsync     < 2.6.9-r6                         >= 2.6.9-r6

Description
===========

Sebastian Krahmer of SUSE reported an integer overflow in the
expand_item_list() function in the file util.c which might lead to a
heap-based buffer overflow when extended attribute (xattr) support is
enabled.

Impact
======

A remote attacker could send a file containing specially crafted
extended attributes to an rsync deamon, or entice a user to sync from
an rsync server containing specially crafted files, possibly leading to
the execution of arbitrary code.

Please note that extended attributes are only enabled when USE="acl" is
enabled, which is the default setting.

Workaround
==========

Disable extended attributes in the rsync daemon by setting "refuse
options = xattrs" in the file "/etc/rsyncd.conf" (or append "xattrs" to
an existing "refuse" statement). When synchronizing to a server, do not
provide the "-X" parameter to rsync. You can also disable the "acl" USE
flag for rsync and recompile the package.

Resolution
==========

All rsync users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-misc/rsync-2.6.9-r6"

References
==========

  [ 1 ] CVE-2008-1720
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1720

Availability
============

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

  http://security.gentoo.org/glsa/glsa-200804-16.xml

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
http://bugs.gentoo.org.

License
=======

Copyright 2008 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

--

New User Registration
Email:
UserID:
Passwd:
Please email me your monthly newsletters, informing the latest services, improvements & surveys.
Please email me a vulnerability test announcement whenever a new test is added.
   Privacy
Registered User Login
 
UserID:   
Passwd:  

 Forgot userid or passwd?
Email/Userid:




Home | About Us | Contact Us | Partner Programs | Developer APIs | Privacy | Mailing Lists | Abuse
Security Audits | Managed DNS | Network Monitoring | Site Analyzer | Internet Research Reports
Web Probe

© 1998-2019 E-Soft Inc. All rights reserved.