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[ GLSA 201404-03 ] OptiPNG: User-assisted execution of arbitrary code
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PostPosted: Mon Apr 07, 2014 9:26 pm    Post subject: [ GLSA 201404-03 ] OptiPNG: User-assisted execution of arbit Reply with quote

Gentoo Linux Security Advisory

Title: OptiPNG: User-assisted execution of arbitrary code (GLSA 201404-03)
Severity: normal
Exploitable: remote
Date: April 07, 2014
Bug(s): #435340
ID: 201404-03

Synopsis

A use-after-free error in OptiPNG could result in execution of
arbitrary code or Denial of Service.


Background

OptiPNG is a PNG optimizer that recompresses image files to a smaller
size, without losing any information.


Affected Packages

Package: media-gfx/optipng
Vulnerable: < 0.7.3
Unaffected: >= 0.7.3
Architectures: All supported architectures


Description

A use-after-free vulnerability exists in the palette reduction
functionality of OptiPNG.


Impact

A remote attacker could entice a user to open a specially crafted image
file, possibly resulting in execution of arbitrary code with the
privileges of the process or a Denial of Service condition.


Workaround

There is no known workaround at this time.

Resolution

All OptiPNG users should upgrade to the latest version:
Code:
# emerge --sync
      # emerge --ask --oneshot --verbose ">=media-gfx/optipng-0.7.3"
   


References

CVE-2012-4432
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