Executive Summary

Summary
Title libpng stalls on highly compressed ancillary chunks
Informations
Name VU#576029 First vendor Publication 2010-03-02
Vendor VU-CERT Last vendor Modification 2010-03-02
Severity (Vendor) N/A Revision M

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 7.8 Attack Range Network
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Vulnerability Note VU#576029

libpng stalls on highly compressed ancillary chunks

Overview

Libpng stalls and consumes large quantities of memory while processing certain Portable Network Graphics (PNG) files.

I. Description

When processing PNG files containing highly compressed ancillary chunks, the png_decompress_chunk() function in libpng can consume large amounts of CPU time and memory. This resource consumption may hang applications that use libpng. More information is available in the PNG Development Group security advisory and supplementary document, Defending Libpng Applications Against Decompression Bombs.

II. Impact

This vulnerability could allow an unauthenticated, remote attacker to cause a denial of service.

III. Solution

Upgrade

The PNG Development Group has released versions 1.4.1, 1.2.43, and 1.0.53, which provide more efficient decompression of ancillary chunks. This update decreases resource consumption associated with chunk decompression, but may not provide a complete defense unless coupled with appropriate memory limits.

Set limits on memory usage and number of cached ancillary chunks

Libpng provides functions to limit memory consumption and number of cached ancillary chunks. Applications that use libpng should use these functions to set appropriate limits. Please see defense #2 in the document Defending Libpng Applications Against Decompression Bombs for more information.

Disable Ancillary Chunk Decoding
Developers who build versions of libpng can choose to ignore ancillary chunks by defining specific preprocessor macros. Please see defense #3 in the document Defending Libpng Applications Against Decompression Bombs for more information.

Systems Affected

VendorStatusDate NotifiedDate Updated
Apple Inc.Unknown2010-02-162010-02-16
Conectiva Inc.Unknown2010-02-162010-02-16
Cray Inc.Unknown2010-02-162010-02-16
Debian GNU/LinuxUnknown2010-02-162010-02-16
DragonFly BSD ProjectUnknown2010-02-162010-02-16
EMC CorporationUnknown2010-02-162010-02-16
Engarde Secure LinuxUnknown2010-02-162010-02-16
F5 Networks, Inc.Unknown2010-02-162010-02-16
Fedora ProjectUnknown2010-02-162010-02-16
FreeBSD ProjectUnknown2010-02-162010-02-16
FujitsuUnknown2010-02-162010-02-16
Gentoo LinuxUnknown2010-02-162010-02-16
Hewlett-Packard CompanyUnknown2010-02-162010-02-16
HitachiUnknown2010-02-162010-02-16
IBM CorporationUnknown2010-02-162010-02-16
IBM Corporation (zseries)Unknown2010-02-162010-02-16
IBM eServerUnknown2010-02-162010-02-16
InfobloxUnknown2010-02-162010-02-16
Internet Initiative Japan, Inc.Not Vulnerable2010-02-162010-03-02
Juniper Networks, Inc.Unknown2010-02-162010-02-16
Mandriva S. A.Unknown2010-02-162010-02-16
Microsoft CorporationUnknown2010-02-162010-02-16
MontaVista Software, Inc.Unknown2010-02-162010-02-16
NEC CorporationUnknown2010-02-162010-02-16
NetBSDUnknown2010-02-162010-02-16
NokiaUnknown2010-02-162010-02-16
Novell, Inc.Unknown2010-02-162010-02-16
OpenBSDUnknown2010-02-162010-02-16
Openwall GNU/*/LinuxUnknown2010-02-162010-02-16
QNX Software Systems Inc.Unknown2010-02-162010-02-16
Red Hat, Inc.Unknown2010-02-162010-02-16
SafeNetUnknown2010-02-162010-02-16
Silicon Graphics, Inc.Unknown2010-02-162010-02-16
Slackware Linux Inc.Unknown2010-02-162010-02-16
Sony CorporationUnknown2010-02-162010-02-16
Sun Microsystems, Inc.Unknown2010-02-162010-02-16
SUSE LinuxUnknown2010-02-162010-02-16
The SCO GroupUnknown2010-02-162010-02-16
TurbolinuxUnknown2010-02-162010-02-16
UbuntuUnknown2010-02-162010-02-16
UnisysUnknown2010-02-162010-02-16
Wind River Systems, Inc.Unknown2010-02-162010-02-16

References


http://libpng.sourceforge.net/ADVISORY-1.4.1.html
http://libpng.sourceforge.net/decompression_bombs.html

Credit

This issue was reported by the PNG Development Group.

This document was written by David Warren.

Other Information

Date Public:2010-03-01
Date First Published:2010-03-02
Date Last Updated:2010-03-02
CERT Advisory: 
CVE-ID(s):CVE-2010-0205
NVD-ID(s):CVE-2010-0205
US-CERT Technical Alerts: 
Metric:0.85
Document Revision:16

Original Source

Url : http://www.kb.cert.org/vuls/id/576029

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:12991
 
Oval ID: oval:org.mitre.oval:def:12991
Title: USN-913-1 -- libpng vulnerabilities
Description: It was discovered that libpng did not properly initialize memory when decoding certain 1-bit interlaced images. If a user or automated system were tricked into processing crafted PNG images, an attacker could possibly use this flaw to read sensitive information stored in memory. This issue only affected Ubuntu 6.06 LTS, 8.04 LTS, 8.10 and 9.04. It was discovered that libpng did not properly handle certain excessively compressed PNG images. If a user or automated system were tricked into processing a crafted PNG image, an attacker could possibly use this flaw to consume all available resources, resulting in a denial of service
Family: unix Class: patch
Reference(s): USN-913-1
CVE-2009-2042
CVE-2010-0205
 Version: 5
Platform(s): Ubuntu 8.04
Ubuntu 8.10
Ubuntu 9.10
Ubuntu 6.06
Ubuntu 9.04
 Product(s): libpng
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:13510
 
Oval ID: oval:org.mitre.oval:def:13510
Title: DSA-2032-1 libpng -- several
Description: Several vulnerabilities have been discovered in libpng, a library for reading and writing PNG files. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2009-2042 libpng does not properly parse 1-bit interlaced images with width values that are not divisible by 8, which causes libpng to include uninitialised bits in certain rows of a PNG file and might allow remote attackers to read portions of sensitive memory via "out-of-bounds pixels" in the file. CVE-2010-0205 libpng does not properly handle compressed ancillary-chunk data that has a disproportionately large uncompressed representation, which allows remote attackers to cause a denial of service via a crafted PNG file For the stable distribution, these problems have been fixed in version 1.2.27-2+lenny3. For the testing and unstable distribution, these problems have been fixed in version 1.2.43-1 We recommend that you upgrade your libpng package.
Family: unix Class: patch
Reference(s): DSA-2032-1
CVE-2009-2042
CVE-2010-0205
 Version: 5
Platform(s): Debian GNU/Linux 5.0
 Product(s): libpng
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:7103
 
Oval ID: oval:org.mitre.oval:def:7103
Title: DSA-2032 libpng -- several vulnerabilities
Description: Several vulnerabilities have been discovered in libpng, a library for reading and writing PNG files. The Common Vulnerabilities and Exposures project identifies the following problems: libpng does not properly parse 1-bit interlaced images with width values that are not divisible by 8, which causes libpng to include uninitialised bits in certain rows of a PNG file and might allow remote attackers to read portions of sensitive memory via "out-of-bounds pixels" in the file. libpng does not properly handle compressed ancillary-chunk data that has a disproportionately large uncompressed representation, which allows remote attackers to cause a denial of service via a crafted PNG file
Family: unix Class: patch
Reference(s): DSA-2032
CVE-2009-2042
CVE-2010-0205
 Version: 5
Platform(s): Debian GNU/Linux 5.0
 Product(s): libpng
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 2
Application 565
Os 73
Os 5
Os 2
Os 3
Os 3
Os 4

OpenVAS Exploits

Date Description
2011-09-07 Name : Mac OS X v10.6.4 Multiple Vulnerabilities (2010-007)
File : nvt/gb_macosx_su10-007.nasl
2011-08-09 Name : CentOS Update for libpng CESA-2010:0534 centos5 i386
File : nvt/gb_CESA-2010_0534_libpng_centos5_i386.nasl
2011-03-09 Name : Gentoo Security Advisory GLSA 201010-01 (libpng)
File : nvt/glsa_201010_01.nasl
2010-08-20 Name : CentOS Update for libpng10 CESA-2010:0534 centos3 i386
File : nvt/gb_CESA-2010_0534_libpng10_centos3_i386.nasl
2010-07-23 Name : Fedora Update for libpng10 FEDORA-2010-10833
File : nvt/gb_fedora_2010_10833_libpng10_fc12.nasl
2010-07-16 Name : RedHat Update for libpng RHSA-2010:0534-01
File : nvt/gb_RHSA-2010_0534-01_libpng.nasl
2010-07-06 Name : Fedora Update for libpng FEDORA-2010-10592
File : nvt/gb_fedora_2010_10592_libpng_fc12.nasl
2010-05-04 Name : FreeBSD Ports: png
File : nvt/freebsd_png3.nasl
2010-04-21 Name : Debian Security Advisory DSA 2032-1 (libpng)
File : nvt/deb_2032_1.nasl
2010-03-31 Name : Fedora Update for libpng FEDORA-2010-4616
File : nvt/gb_fedora_2010_4616_libpng_fc11.nasl
2010-03-31 Name : Fedora Update for libpng FEDORA-2010-4673
File : nvt/gb_fedora_2010_4673_libpng_fc12.nasl
2010-03-31 Name : Mandriva Update for libpng MDVSA-2010:063 (libpng)
File : nvt/gb_mandriva_MDVSA_2010_063.nasl
2010-03-31 Name : Mandriva Update for libpng MDVSA-2010:064 (libpng)
File : nvt/gb_mandriva_MDVSA_2010_064.nasl
2010-03-22 Name : Fedora Update for libpng10 FEDORA-2010-3414
File : nvt/gb_fedora_2010_3414_libpng10_fc11.nasl
2010-03-22 Name : Fedora Update for libpng10 FEDORA-2010-3375
File : nvt/gb_fedora_2010_3375_libpng10_fc12.nasl
2010-03-22 Name : Ubuntu Update for libpng vulnerabilities USN-913-1
File : nvt/gb_ubuntu_USN_913_1.nasl
2010-02-19 Name : Mandriva Update for totem MDVA-2010:063 (totem)
File : nvt/gb_mandriva_MDVA_2010_063.nasl
2010-02-19 Name : Mandriva Update for pptp-linux MDVA-2010:064 (pptp-linux)
File : nvt/gb_mandriva_MDVA_2010_064.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
62670 libpng pngrutil.c png_decompress_chunk Function Ancillary Chunks PNG File Dec...

libpng contains a flaw that may allow a remote denial of service. The issue is triggered when the png_decompress_chunk() function in libpng fails to properly decompress certain highly compressed ancillary-chunk data, causing the process to consume large amounts of CPU and memory which may result in loss of availability for the application.

Nessus® Vulnerability Scanner

Date Description
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2010-0534.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20100714_libpng_on_SL3_x.nasl - Type : ACT_GATHER_INFO
2011-01-21 Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_libpng12-0-100319.nasl - Type : ACT_GATHER_INFO
2010-12-02 Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_libpng-devel-100319.nasl - Type : ACT_GATHER_INFO
2010-11-10 Name : The remote host is missing a Mac OS X update that fixes security issues.
File : macosx_SecUpd2010-007.nasl - Type : ACT_GATHER_INFO
2010-11-10 Name : The remote host is missing a Mac OS X update that fixes various security issues.
File : macosx_10_6_5.nasl - Type : ACT_GATHER_INFO
2010-10-11 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_libpng-6933.nasl - Type : ACT_GATHER_INFO
2010-10-06 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201010-01.nasl - Type : ACT_GATHER_INFO
2010-07-28 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2010-0534.nasl - Type : ACT_GATHER_INFO
2010-07-16 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2010-0534.nasl - Type : ACT_GATHER_INFO
2010-07-01 Name : The remote Fedora host is missing a security update.
File : fedora_2010-4683.nasl - Type : ACT_GATHER_INFO
2010-07-01 Name : The remote Fedora host is missing a security update.
File : fedora_2010-4673.nasl - Type : ACT_GATHER_INFO
2010-07-01 Name : The remote Fedora host is missing a security update.
File : fedora_2010-4616.nasl - Type : ACT_GATHER_INFO
2010-07-01 Name : The remote Fedora host is missing a security update.
File : fedora_2010-3414.nasl - Type : ACT_GATHER_INFO
2010-07-01 Name : The remote Fedora host is missing a security update.
File : fedora_2010-3375.nasl - Type : ACT_GATHER_INFO
2010-07-01 Name : The remote Fedora host is missing a security update.
File : fedora_2010-2988.nasl - Type : ACT_GATHER_INFO
2010-05-18 Name : The remote openSUSE host is missing a security update.
File : suse_11_0_libpng-devel-100318.nasl - Type : ACT_GATHER_INFO
2010-05-18 Name : The remote openSUSE host is missing a security update.
File : suse_11_1_libpng-devel-100318.nasl - Type : ACT_GATHER_INFO
2010-05-18 Name : The remote openSUSE host is missing a security update.
File : suse_11_2_libpng-devel-100318.nasl - Type : ACT_GATHER_INFO
2010-05-07 Name : The remote SuSE 9 host is missing a security-related patch.
File : suse9_12599.nasl - Type : ACT_GATHER_INFO
2010-04-21 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_4fb5d2cd4c7711df83fb0015587e2cc1.nasl - Type : ACT_GATHER_INFO
2010-04-12 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2032.nasl - Type : ACT_GATHER_INFO
2010-03-24 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2010-064.nasl - Type : ACT_GATHER_INFO
2010-03-23 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2010-063.nasl - Type : ACT_GATHER_INFO
2010-03-17 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-913-1.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 12:07:59
  • Multiple Updates