Updated libpng packages fix buffer overflow

Advisory:	RHSA-2002:151-21
Type:	Security Advisory
Severity:	N/A
Issued on:	2002-07-23
Last updated on:	2002-08-14
Affected Products:	Red Hat Linux 6.2 Red Hat Linux 7.0 Red Hat Linux 7.1 Red Hat Linux 7.2 Red Hat Linux 7.3
OVAL:	N/A
CVEs (cve.mitre.org):	CVE-2002-0660 CVE-2002-0728

Details

Updated libpng packages are available that fix a buffer overflow vulnerability.

The libpng package contains a library of functions for creating and
manipulating PNG (Portable Network Graphics) image format files. PNG
is a bit-mapped graphics format similar to the GIF format.

Versions of libpng prior to 1.0.14 contain a buffer overflow in the
progressive reader when the PNG datastream contains more IDAT data than
indicated by the IHDR chunk. Such deliberately malformed datastreams would
crash applications that are linked to libpng and that use the progressive
reading feature. Mozilla is such an application. (CAN-2002-0728)

Packages within Red Hat Linux, such as Mozilla, make use of the shared
libpng library. Therefore, all users are advised to upgrade to the errata
packages which contain libpng 1.0.14. Libpng 1.0.14 is not vulnerable to
this issue and contains fixes for other bugs, including a number of memory
leaks and another potential buffer overflow (CAN-2002-0660)

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

To update all RPMs for your particular architecture, run:

rpm -Fvh [filenames]

where [filenames] is a list of the RPMs you wish to upgrade. Only those
RPMs which are currently installed will be updated. Those RPMs which are
not installed but included in the list will not be updated. Note that you
can also use wildcards (*.rpm) if your current directory *only* contains the
desired RPMs.

Please note that this update is also available via Red Hat Network. Many
people find this an easier way to apply updates. To use Red Hat Network,
launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

Updated packages

Red Hat Linux 6.2

SRPMS:
libpng-1.0.14-0.6x.3.src.rpm File outdated by: RHSA-2003:006	`37e6d57dd31704b71feef50369c5e8ff`

Alpha:
ftp://updates.redhat.com/6.2/en/os/alpha/libpng-1.0.14-0.6x.3.alpha.rpm Missing file	`3d3bd8f26bba979c6301392b67bbaa1c`
ftp://updates.redhat.com/6.2/en/os/alpha/libpng-devel-1.0.14-0.6x.3.alpha.rpm Missing file	`a12a60e72efd324e062577c6fbc169fa`

IA-32:
libpng-1.0.14-0.6x.3.i386.rpm File outdated by: RHSA-2003:006	`d04060bc8a6b5af91fce003e8c0d5faa`
libpng-devel-1.0.14-0.6x.3.i386.rpm File outdated by: RHSA-2003:006	`e404307047f3fd803203beeaefa7f6bf`

Sparc:
ftp://updates.redhat.com/6.2/en/os/sparc/libpng-1.0.14-0.6x.3.sparc.rpm Missing file	`f5145bfc2c3b1fd851faa973fe8acf54`
ftp://updates.redhat.com/6.2/en/os/sparc/libpng-devel-1.0.14-0.6x.3.sparc.rpm Missing file	`6c811458f9d1830a1a8a7ec488c90063`

Red Hat Linux 7.0

SRPMS:
libpng-1.0.14-0.70.1.src.rpm File outdated by: RHSA-2003:006	`7dd1a3c2196fe6595a7eadd267b2cf81`

Alpha:
ftp://updates.redhat.com/7.0/en/os/alpha/libpng-1.0.14-0.70.1.alpha.rpm Missing file	`17785632b35b332ae3422e96e41185be`
ftp://updates.redhat.com/7.0/en/os/alpha/libpng-devel-1.0.14-0.70.1.alpha.rpm Missing file	`a1c84380d5ed3feebce4cd800042b0e6`

IA-32:
libpng-1.0.14-0.70.1.i386.rpm File outdated by: RHSA-2003:006	`5b0cc82f9cc13d020e84a685972b2d6e`
libpng-devel-1.0.14-0.70.1.i386.rpm File outdated by: RHSA-2003:006	`97fc5a8ba5f9189ed31fa653efcbee94`

Red Hat Linux 7.1

SRPMS:
libpng-1.0.14-0.7x.3.src.rpm File outdated by: RHSA-2003:006	`9d889338062ed3f54c274f8d287f8478`

Alpha:
ftp://updates.redhat.com/7.1/en/os/alpha/libpng-1.0.14-0.7x.3.alpha.rpm Missing file	`8a83337f7161079002ea910996364fab`
ftp://updates.redhat.com/7.1/en/os/alpha/libpng-devel-1.0.14-0.7x.3.alpha.rpm Missing file	`529a2870130c849f71107401f1697d39`

IA-32:
libpng-1.0.14-0.7x.3.i386.rpm File outdated by: RHSA-2003:006	`738be191bbe6ae286185cc7e03686c2b`
libpng-devel-1.0.14-0.7x.3.i386.rpm File outdated by: RHSA-2003:006	`e1b6c601e3469125617278a948eeea4f`

IA-64:
ftp://updates.redhat.com/7.1/en/os/ia64/libpng-1.0.14-0.7x.3.ia64.rpm Missing file	`ebbb5938bf37b293ece898a59c889304`
ftp://updates.redhat.com/7.1/en/os/ia64/libpng-devel-1.0.14-0.7x.3.ia64.rpm Missing file	`6086069c4a7d5e85c5241f6b1d803aea`

Red Hat Linux 7.2

SRPMS:
libpng-1.0.14-0.7x.3.src.rpm File outdated by: RHSA-2003:006	`9d889338062ed3f54c274f8d287f8478`

IA-32:
libpng-1.0.14-0.7x.3.i386.rpm File outdated by: RHSA-2003:006	`738be191bbe6ae286185cc7e03686c2b`
libpng-devel-1.0.14-0.7x.3.i386.rpm File outdated by: RHSA-2003:006	`e1b6c601e3469125617278a948eeea4f`

IA-64:
libpng-1.0.14-0.7x.3.ia64.rpm File outdated by: RHSA-2003:006	`ebbb5938bf37b293ece898a59c889304`
libpng-devel-1.0.14-0.7x.3.ia64.rpm File outdated by: RHSA-2003:006	`6086069c4a7d5e85c5241f6b1d803aea`

Red Hat Linux 7.3

SRPMS:
libpng-1.0.14-0.7x.3.src.rpm File outdated by: RHSA-2003:006	`9d889338062ed3f54c274f8d287f8478`

IA-32:
libpng-1.0.14-0.7x.3.i386.rpm File outdated by: RHSA-2003:006	`738be191bbe6ae286185cc7e03686c2b`
libpng-devel-1.0.14-0.7x.3.i386.rpm File outdated by: RHSA-2003:006	`e1b6c601e3469125617278a948eeea4f`

Bugs fixed (see bugzilla for more information)

69716 - libpng security update

References

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2002-0660
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2002-0728
ftp://swrinde.nde.swri.edu/pub/png-group/archives/png-list.200207

Keywords

buffer, IDAT, IHDR, libpng, overflow

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