What is the severity of REDHAT-BUG-720608?

The severity of REDHAT-BUG-720608 is considered high as it can lead to a crash in applications using the affected versions of libpng.

How do I fix REDHAT-BUG-720608?

To fix REDHAT-BUG-720608, upgrade to libpng version 1.5.4 or later.

What versions of libpng are affected by REDHAT-BUG-720608?

Versions of libpng prior to 1.2.45 and those between 1.2.20 and 1.5.4 are affected by REDHAT-BUG-720608.

What happens if I use an affected version of libpng in REDHAT-BUG-720608?

Using an affected version of libpng can cause the png_default_error() function to crash when a NULL pointer is passed.

Is there a known exploit for REDHAT-BUG-720608?

As of now, there is no publicly available exploit specifically targeting REDHAT-BUG-720608.

Vulnerability/
REDHAT-BUG-720608

low

12/7/2011

24/2/2021

REDHAT-BUG-720608

First published: Tue Jul 12 2011(Updated: )

It was found that in libpng, prior to 1.2.45, the error function received a NULL pointer, expressed erroneously as '\0', instead of the empty string "". This error was introduced in libpng-1.2.20, and png_default_error() will crash in this case. This was be fixed in libpng-1.5.4, libpng-1.4.8, libpng-1.2.45, and libpng-1.0.55. Patch: <a href="http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng;a=commitdiff;h=9dad5e37aef295b4ef8dea39392b652deebc9261">http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng;a=commitdiff;h=9dad5e37aef295b4ef8dea39392b652deebc9261</a>

Affected Software	Affected Version	How to fix
libpng	<1.2.45
libpng	>=1.2.20<1.5.4

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Frequently Asked Questions

What is the severity of REDHAT-BUG-720608?
The severity of REDHAT-BUG-720608 is considered high as it can lead to a crash in applications using the affected versions of libpng.
How do I fix REDHAT-BUG-720608?
To fix REDHAT-BUG-720608, upgrade to libpng version 1.5.4 or later.
What versions of libpng are affected by REDHAT-BUG-720608?
Versions of libpng prior to 1.2.45 and those between 1.2.20 and 1.5.4 are affected by REDHAT-BUG-720608.
What happens if I use an affected version of libpng in REDHAT-BUG-720608?
Using an affected version of libpng can cause the png_default_error() function to crash when a NULL pointer is passed.
Is there a known exploit for REDHAT-BUG-720608?
As of now, there is no publicly available exploit specifically targeting REDHAT-BUG-720608.

agent/references
agent/type
agent/first-publish-date
agent/last-modified-date
collector/redhat-bugzilla
source/Red Hat
alias/CVE-2011-2691
agent/severity
agent/description
agent/event
agent/trending
agent/source
agent/softwarecombine
agent/tags
agent/guess-ai
agent/software-canonical-lookup
agent/software-canonical-lookup-request
vendor/libpng
canonical/libpng

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