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[ GLSA 201206-20 ] gdk-pixbuf: Denial of Service
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PostPosted: Sat Jun 23, 2012 9:26 pm    Post subject: [ GLSA 201206-20 ] gdk-pixbuf: Denial of Service Reply with quote

Gentoo Linux Security Advisory

Title: gdk-pixbuf: Denial of Service (GLSA 201206-20)
Severity: normal
Exploitable: remote
Date: June 23, 2012
Bug(s): #373999, #412033
ID: 201206-20

Synopsis

Multiple vulnerabilities in gdk-pixbuf may create a Denial of
Service condition.


Background

gdk-pixbuf is an image loading library for GTK+.

Affected Packages

Package: x11-libs/gdk-pixbuf
Vulnerable: < 2.24.1-r1
Unaffected: >= 2.24.1-r1
Architectures: All supported architectures


Description

Two vulnerabilities have been found in gdk-pixbuf:
  • The "gdk_pixbuf__gif_image_load()" function in io-gif.c fails to
    properly handle certain return values from subroutines (CVE-2011-2485).
  • The "read_bitmap_file_data()" function in io-xbm.c contains an
    integer overflow error (CVE-2012-2370).


Impact

A remote attacker could entice a user to open a specially crafted image
in an application linked against gdk-pixbuf, possibly resulting in Denial
of Service.


Workaround

There is no known workaround at this time.

Resolution

All gdk-pixbuf users should upgrade to the latest version:
Code:
# emerge --sync
      # emerge --ask --oneshot --verbose ">=x11-libs/gdk-pixbuf-2.24.1-r1"
   
Packages which depend on this library may need to be recompiled. Tools
such as revdep-rebuild may assist in identifying some of these packages.


References

CVE-2011-2485
CVE-2012-2370
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