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Fedora 23: Essential libpng10 Security Update for DoS and Data Leak

fedora
Calendar Grey November 24, 2015
Scroller Fedora
Important patch for libpng10 resolves out-of-bounds access and buffer overflow vulnerabilities, impacting users of Fedora 23.
An out-of-bounds read in png_convert_to_rfc1123() in png.c could potentially be exploited by a crafted PNG file to leak information from an application's memory (CVE-2015-7981)

Summary

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:

An out-of-bounds read in png_convert_to_rfc1123() in png.c could potentially be exploited by a crafted PNG file to leak information from an application's memory (CVE-2015-7981). Buffer overflow vulnerabilities in functions png_get_PLTE/png_set_PLTE, allowing remote attackers to cause DoS to application or have unspecified other impact (CVE-2015-8126). Also includes various other small bug fixes as detailed in the package changelog.

Topics%20covered

Topics Covered

security advisory information leak buffer overflow critical Fedora DoS libpng10

Change Log

References


[ 1 ] Bug #1276416 - CVE-2015-7981 libpng: Out-of-bounds read in png_convert_to_rfc1123 https://bugzilla.redhat.com/show_bug.cgi?id=1276416 [ 2 ] Bug #1281756 - CVE-2015-8126 libpng: Buffer overflow vulnerabilities in png_get_PLTE/png_set_PLTE functions https://bugzilla.redhat.com/show_bug.cgi?id=1281756

Update Instructions

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 .

Severity
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Name: libpng10
Product: Fedora 23
Version: 1.0.64
Release: 1.fc23
URL: http://www.libpng.org/pub/png/libpng.html
Summary: Old version of libpng, needed to run old binaries

Topics%20covered

Topics Covered

security advisory information leak buffer overflow critical Fedora DoS libpng10

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