U radu programske biblioteke libpng10 uočeno je nekoliko propusta koje udaljeni napadači mogu iskoristiti za izmjenu podataka, proizvoljno izvršavanje programskog koda i napad uskraćivanja usluga.

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Fedora Update Notification
FEDORA-2012-5080
2012-03-31 02:16:59
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Name        : libpng10
Product     : Fedora 16
Version     : 1.0.59
Release     : 1.fc16
URL         : http://www.libpng.org/pub/png/libpng.html
Summary     : Old version of libpng, needed to run old binaries
Description :
The libpng10 package contains an old version of libpng, a library of functions
for creating and manipulating PNG (Portable Network Graphics) image format
files.

This package is needed if you want to run binaries that were linked dynamically
with libpng 1.0.x.

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Update Information:

This update includes a fix for a potential memory corruption issue
(CVE-2011-3048).
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ChangeLog:

* Thu Mar 29 2012 Paul Howarth <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.> 1.0.59-1
- update to 1.0.59
  - revised png_set_text_2() to avoid potential memory corruption
    (CVE-2011-3048)
  - prevent PNG_EXPAND+PNG_SHIFT doing the shift twice
* Fri Mar  9 2012 Paul Howarth <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.> 1.0.58-1
- update to 1.0.58
  - fix bug with png_handle_hIST with odd chunk length
  - fix incorrect type (int copy should be png_size_t copy) in png_inflate()
    (CVE-2011-3045)
  - fix off-by-one bug in png_handle_sCAL() when using fixed point arithmetic,
    causing out-of-bounds read in png_set_sCAL() because of failure to copy
    the string terminators
  - remove the png_free() of unused png_ptr->current_text from pngread.c
  - remove all of the assembler code from pnggccrd.c and just "return 2;"
* Sun Feb 19 2012 Paul Howarth <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.> 1.0.57-1
- update to 1.0.57 (fixed CVE-2011-3026 buffer overrun bug)
* Thu Jan  5 2012 Paul Howarth <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.> 1.0.56-2
- rebuilt for gcc 4.7
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References:

  [ 1 ] Bug #808139 - CVE-2011-3048 libpng: memory corruption flaw
        https://bugzilla.redhat.com/show_bug.cgi?id=808139
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This update can be installed with the "yum" update program.  Use 
su -c 'yum update libpng10' at the command line.
For more information, refer to "Managing Software with yum",
available at http://docs.fedoraproject.org/yum/.

All packages are signed with the Fedora Project GPG key.  More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
--------------------------------------------------------------------------------
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package-announce mailing list
Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.
https://admin.fedoraproject.org/mailman/listinfo/package-announce

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Fedora Update Notification
FEDORA-2012-5079
2012-03-31 02:16:57
--------------------------------------------------------------------------------

Name        : libpng10
Product     : Fedora 15
Version     : 1.0.59
Release     : 1.fc15
URL         : http://www.libpng.org/pub/png/libpng.html
Summary     : Old version of libpng, needed to run old binaries
Description :
The libpng10 package contains an old version of libpng, a library of functions
for creating and manipulating PNG (Portable Network Graphics) image format
files.

This package is needed if you want to run binaries that were linked dynamically
with libpng 1.0.x.

--------------------------------------------------------------------------------
Update Information:

This update includes a fix for a potential memory corruption issue
(CVE-2011-3048).
--------------------------------------------------------------------------------
ChangeLog:

* Thu Mar 29 2012 Paul Howarth <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.> 1.0.59-1
- update to 1.0.59
  - revised png_set_text_2() to avoid potential memory corruption
    (CVE-2011-3048)
  - prevent PNG_EXPAND+PNG_SHIFT doing the shift twice
* Fri Mar  9 2012 Paul Howarth <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.> 1.0.58-1
- update to 1.0.58
  - fix bug with png_handle_hIST with odd chunk length
  - fix incorrect type (int copy should be png_size_t copy) in png_inflate()
    (CVE-2011-3045)
  - fix off-by-one bug in png_handle_sCAL() when using fixed point arithmetic,
    causing out-of-bounds read in png_set_sCAL() because of failure to copy
    the string terminators
  - remove the png_free() of unused png_ptr->current_text from pngread.c
  - remove all of the assembler code from pnggccrd.c and just "return 2;"
* Sun Feb 19 2012 Paul Howarth <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.> 1.0.57-1
- update to 1.0.57 (fixed CVE-2011-3026 buffer overrun bug)
* Thu Jan  5 2012 Paul Howarth <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.> 1.0.56-2
- rebuilt for gcc 4.7
* Sat Jul  9 2011 Paul Howarth <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.> 1.0.56-1
- update to 1.0.56
  - fix regression in Makefile.am/Makefile.in
  - fix "make distcheck"
- drop upstreamed fix for libpng.sym build failure
* Thu Jul  7 2011 Paul Howarth <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.> 1.0.55-1
- update to 1.0.55
  - fixed uninitialized memory read in png_format_buffer()
    (CVE-2011-2501, related to CVE-2004-0421)
  - pass "" instead of '&#65533;' to png_default_error() in png_err() (CVE-2011-2691)
  - check for up->location !PNG_AFTER_IDAT when writing unknown chunks before
    IDAT
  - ported bugfix in pngrtran.c from 1.5.3: when expanding a paletted image,
    always expand to RGBA if transparency is present
  - check for integer overflow in png_set_rgb_to_gray() (CVE-2011-2690)
  - check for sCAL chunk too short (CVE-2011-2692)
- drop upstreamed patch for CVE-2011-2501
- add patch to fix build failure due to regression in libpng.sym creation
* Wed Jun 29 2011 Paul Howarth <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.> 1.0.54-3
- fix 1-byte uninitialized memory reference in png_format_buffer()
  (CVE-2011-2501, related to CVE-2004-0421)
- nobody else likes macros for commands
--------------------------------------------------------------------------------
References:

  [ 1 ] Bug #808139 - CVE-2011-3048 libpng: memory corruption flaw
        https://bugzilla.redhat.com/show_bug.cgi?id=808139
--------------------------------------------------------------------------------

This update can be installed with the "yum" update program.  Use 
su -c 'yum update libpng10' at the command line.
For more information, refer to "Managing Software with yum",
available at http://docs.fedoraproject.org/yum/.

All packages are signed with the Fedora Project GPG key.  More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
--------------------------------------------------------------------------------
_______________________________________________
package-announce mailing list
Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.
https://admin.fedoraproject.org/mailman/listinfo/package-announce