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Gentoo Linux Security Advisory                           GLSA 200512-18
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                                            https://security.gentoo.org/
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  Severity: Normal
     Title: XnView: Privilege escalation
      Date: December 30, 2005
      Bugs: #117063
        ID: 200512-18

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Synopsis
=======
XnView may search for shared libraries in an untrusted location,
potentially allowing local users to execute arbitrary code with the
privileges of another user.

Background
=========
XnView is an efficient multimedia viewer, browser and converter,
distributed free for non-commercial use.

Affected packages
================
    -------------------------------------------------------------------
     Package          /  Vulnerable  /                      Unaffected
    -------------------------------------------------------------------
  1  x11-misc/xnview      < 1.70-r1                         >= 1.70-r1
    -------------------------------------------------------------------
     # Package 1 only applies to x86 users.

Description
==========
Krzysiek Pawlik of Gentoo Linux discovered that the XnView package for
IA32 used the DT_RPATH field insecurely, causing the dynamic loader to
search for shared libraries in potentially untrusted directories.

Impact
=====
A local attacker could create a malicious shared object that would be
loaded and executed when a user attempted to use an XnView utility.
This would allow a malicious user to effectively hijack XnView and
execute arbitrary code with the privileges of the user running the
program.

Workaround
=========
The system administrator may use the chrpath utility to remove the
DT_RPATH field from the XnView utilities:

    # emerge app-admin/chrpath
    # chrpath --delete /opt/bin/nconvert /opt/bin/nview /opt/bin/xnview

Resolution
=========
All XnView users on the x86 platform should upgrade to the latest
version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=x11-misc/xnview-1.70-r1"

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

  https://security.gentoo.org/glsa/200512-18

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 2005 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.

https://creativecommons.org/licenses/by-sa/2.0/

Gentoo: GLSA-200512-18: XnView: Privilege escalation

XnView may search for shared libraries in an untrusted location, potentially allowing local users to execute arbitrary code with the privileges of another user

Summary

Gentoo Linux Security Advisory GLSA 200512-18 https://security.gentoo.org/ Severity: Normal Title: XnView: Privilege escalation Date: December 30, 2005 Bugs: #117063 ID: 200512-18

Synopsis ======= XnView may search for shared libraries in an untrusted location, potentially allowing local users to execute arbitrary code with the privileges of another user.
Background ========= XnView is an efficient multimedia viewer, browser and converter, distributed free for non-commercial use.
Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 x11-misc/xnview < 1.70-r1 >= 1.70-r1 ------------------------------------------------------------------- # Package 1 only applies to x86 users.
========== Krzysiek Pawlik of Gentoo Linux discovered that the XnView package for IA32 used the DT_RPATH field insecurely, causing the dynamic loader to search for shared libraries in potentially untrusted directories.
Impact ===== A local attacker could create a malicious shared object that would be loaded and executed when a user attempted to use an XnView utility. This would allow a malicious user to effectively hijack XnView and execute arbitrary code with the privileges of the user running the program.
Workaround ========= The system administrator may use the chrpath utility to remove the DT_RPATH field from the XnView utilities:
# emerge app-admin/chrpath # chrpath --delete /opt/bin/nconvert /opt/bin/nview /opt/bin/xnview
Resolution ========= All XnView users on the x86 platform should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=x11-misc/xnview-1.70-r1"
Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/200512-18
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 2005 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.
https://creativecommons.org/licenses/by-sa/2.0/

Resolution

References

Availability

Concerns

Severity

Synopsis

Background

Affected Packages

Impact

Workaround

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