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Gentoo Linux Security Advisory                           GLSA 200707-06
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                                            https://security.gentoo.org/
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  Severity: Normal
     Title: XnView: Stack-based buffer overflow
      Date: July 11, 2007
      Bugs: #175670
        ID: 200707-06

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Synopsis
=======
XnView is vulnerable to a stack-based buffer overflow and possible
remote code execution when handling XPM image files.

Background
=========
XnView is software to view and convert graphics files. XPixMap (XPM) is
a simple ascii-based graphics format.

Affected packages
================
    -------------------------------------------------------------------
     Package          /  Vulnerable  /                      Unaffected
    -------------------------------------------------------------------
  1  x11-misc/xnview       < 1.70                          Vulnerable!
    -------------------------------------------------------------------
     # Package 1 only applies to x86 users.
    -------------------------------------------------------------------
     NOTE: Certain packages are still vulnerable. Users should migrate
           to another package if one is available or wait for the
           existing packages to be marked stable by their
           architecture maintainers.

Description
==========
XnView is vulnerable to a stack-based buffer overflow while processing
an XPM file with an overly long section string (greater than 1024
bytes).

Impact
=====
An attacker could entice a user to view a specially crafted XPM file
with XnView that could trigger the vulnerability and possibly execute
arbitrary code with the rights of the user running XnView.

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

Resolution
=========
No update appears to be forthcoming from the XnView developer and
XnView is proprietary, so the XnView package has been masked in
Portage. We recommend that users select an alternate graphics viewer
and conversion utility, and unmerge XnView:

    # emerge --unmerge xnview

References
=========
  [ 1 ] CVE-2007-2194
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2194

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

  https://security.gentoo.org/glsa/200707-06

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 2007 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/2.5/

Gentoo: GLSA-200707-06: XnView: Stack-based buffer overflow

XnView is vulnerable to a stack-based buffer overflow and possible remote code execution when handling XPM image files.

Summary

Gentoo Linux Security Advisory GLSA 200707-06 https://security.gentoo.org/ Severity: Normal Title: XnView: Stack-based buffer overflow Date: July 11, 2007 Bugs: #175670 ID: 200707-06

Synopsis ======= XnView is vulnerable to a stack-based buffer overflow and possible remote code execution when handling XPM image files.
Background ========= XnView is software to view and convert graphics files. XPixMap (XPM) is a simple ascii-based graphics format.
Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 x11-misc/xnview < 1.70 Vulnerable! ------------------------------------------------------------------- # Package 1 only applies to x86 users. ------------------------------------------------------------------- NOTE: Certain packages are still vulnerable. Users should migrate to another package if one is available or wait for the existing packages to be marked stable by their architecture maintainers.
========== XnView is vulnerable to a stack-based buffer overflow while processing an XPM file with an overly long section string (greater than 1024 bytes).
Impact ===== An attacker could entice a user to view a specially crafted XPM file with XnView that could trigger the vulnerability and possibly execute arbitrary code with the rights of the user running XnView.
Workaround ========= There is no known workaround at this time.
Resolution ========= No update appears to be forthcoming from the XnView developer and XnView is proprietary, so the XnView package has been masked in Portage. We recommend that users select an alternate graphics viewer and conversion utility, and unmerge XnView:
# emerge --unmerge xnview
References ========= [ 1 ] CVE-2007-2194 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2194
Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/200707-06
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 2007 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/2.5/

Resolution

References

Availability

Concerns

Severity

Synopsis

Background

Affected Packages

Impact

Workaround

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