libxml2 'xmlCurrentChar()' UTF-8 Parsing Remote Denial of Service Vulnerability

BID:27248

Info

libxml2 'xmlCurrentChar()' UTF-8 Parsing Remote Denial of Service Vulnerability

Bugtraq ID: 27248
Class: Design Error
CVE: CVE-2007-6284
Remote: Yes
Local: No
Published: Jan 11 2008 12:00AM
Updated: Apr 13 2015 09:28PM
Credit: Brad Fitzpatrick is credited with the discovery of this vulnerability.
Vulnerable: VMWare ESX Server 2.5.5 patch 4
VMWare ESX Server 2.5.5 patch 2
VMWare ESX Server 2.5.5
VMWare ESX Server 2.5.4 Patch 16
VMWare ESX Server 2.5.4 patch 15
VMWare ESX Server 2.5.4 patch 13
VMWare ESX Server 2.5.4 Patch 10
VMWare ESX Server 2.5.4 Patch 1
VMWare ESX Server 2.5.4
VideoLAN VLC media player 0.8.6 g
VideoLAN VLC media player 0.8.6 d
VideoLAN VLC media player 0.8.6
+ Debian Linux 4.0 sparc
 + Debian Linux 4.0 s/390
 + Debian Linux 4.0 powerpc
 + Debian Linux 4.0 mipsel
 + Debian Linux 4.0 mips
 + Debian Linux 4.0 m68k
 + Debian Linux 4.0 ia-64
 + Debian Linux 4.0 ia-32
 + Debian Linux 4.0 hppa
 + Debian Linux 4.0 arm
 + Debian Linux 4.0 amd64
 + Debian Linux 4.0 alpha
 + Debian Linux 4.0
 VideoLAN VLC media player 0.8.6f
VideoLAN VLC media player 0.8.6e
VideoLAN VLC media player 0.8.6c
VideoLAN VLC media player 0.8.6b
VideoLAN VLC media player 0.8.6a
Ubuntu Ubuntu Linux 7.10 sparc
Ubuntu Ubuntu Linux 7.10 powerpc
Ubuntu Ubuntu Linux 7.10 i386
Ubuntu Ubuntu Linux 7.10 amd64
Ubuntu Ubuntu Linux 7.04 sparc
Ubuntu Ubuntu Linux 7.04 powerpc
Ubuntu Ubuntu Linux 7.04 i386
Ubuntu Ubuntu Linux 7.04 amd64
Ubuntu Ubuntu Linux 6.10 sparc
Ubuntu Ubuntu Linux 6.10 powerpc
Ubuntu Ubuntu Linux 6.10 i386
Ubuntu Ubuntu Linux 6.10 amd64
Ubuntu Ubuntu Linux 6.06 LTS sparc
Ubuntu Ubuntu Linux 6.06 LTS powerpc
Ubuntu Ubuntu Linux 6.06 LTS i386
Ubuntu Ubuntu Linux 6.06 LTS amd64
SuSE SUSE Linux Enterprise Server 9 SP3
SuSE SUSE Linux Enterprise Server 9
SuSE SUSE Linux Enterprise Server 8
+ Linux kernel 2.4.21
+ Linux kernel 2.4.19
SuSE SUSE Linux Enterprise Server 10 SP1
SuSE SUSE Linux Enterprise Server 10
SuSE SUSE Linux Enterprise SDK 9
SuSE SUSE Linux Enterprise SDK 10.SP1
SuSE SUSE Linux Enterprise SDK 10
SuSE Suse Linux Enterprise Desktop 10 SP1
SuSE Suse Linux Enterprise Desktop 10
SuSE SUSE Linux Enterprise 10 SP1 DEBUGINFO
SuSE Linux Desktop 10
SuSE Linux 10.1 x86-64
SuSE Linux 10.1 x86
SuSE Linux 10.1 ppc
SuSE Linux 10.0 x86-64
SuSE Linux 10.0 x86
SuSE Linux 10.0 ppc
Sun Solaris 9_x86
Sun Solaris 9_sparc
Sun Solaris 10_x86
Sun Solaris 10_sparc
S.u.S.E. UnitedLinux 1.0
S.u.S.E. SuSE Linux School Server for i386
S.u.S.E. SUSE LINUX Retail Solution 8.0
S.u.S.E. SuSE Linux Openexchange Server 4.0
S.u.S.E. SuSE Linux Open-Xchange 4.1
S.u.S.E. openSUSE 10.3
S.u.S.E. openSUSE 10.2
S.u.S.E. openSUSE 10.1
S.u.S.E. Open-Enterprise-Server 1
S.u.S.E. Open-Enterprise-Server 0
S.u.S.E. Novell Linux POS 9
S.u.S.E. Novell Linux Desktop SDK 9.0
S.u.S.E. Novell Linux Desktop 9.0
S.u.S.E. Novell Linux Desktop 1.0
S.u.S.E. Linux Professional 10.0 OSS
S.u.S.E. Linux Professional 10.0
S.u.S.E. Linux Professional 10.2 X86 64
S.u.S.E. Linux Professional 10.2
S.u.S.E. Linux Professional 10.1
S.u.S.E. Linux Personal 10.0 OSS
S.u.S.E. Linux Personal 10.2 X86 64
S.u.S.E. Linux Personal 10.2
S.u.S.E. Linux Personal 10.1
rPath rPath Linux 1
rPath Appliance Platform Linux Service 1
Redhat Fedora 7
Nortel Networks Self-Service Peri Workstation 0
Nortel Networks Self-Service MPS 1000 0
Nortel Networks Self-Service Media Processing Server 0
Nortel Networks Self-Service - Peri Application Rel 3.0
Nortel Networks Self-Service - CCSS7 0
Nortel Networks Self-Service 0
Nortel Networks Enterprise Network Management System
Mandriva Linux Mandrake 2008.0 x86_64
Mandriva Linux Mandrake 2008.0
Mandriva Linux Mandrake 2007.1 x86_64
Mandriva Linux Mandrake 2007.1
Mandriva Linux Mandrake 2007.0 x86_64
Mandriva Linux Mandrake 2007.0
MandrakeSoft Corporate Server 4.0 x86_64
MandrakeSoft Corporate Server 3.0 x86_64
MandrakeSoft Corporate Server 3.0
MandrakeSoft Corporate Server 4.0
Gentoo Linux
Debian Linux 3.1 sparc
Debian Linux 3.1 s/390
Debian Linux 3.1 ppc
Debian Linux 3.1 mipsel
Debian Linux 3.1 mips
Debian Linux 3.1 m68k
Debian Linux 3.1 ia-64
Debian Linux 3.1 ia-32
Debian Linux 3.1 hppa
Debian Linux 3.1 arm
Debian Linux 3.1 amd64
Debian Linux 3.1 alpha
Debian Linux 3.1
Debian Linux 4.0 sparc
Debian Linux 4.0 s/390
Debian Linux 4.0 powerpc
Debian Linux 4.0 mipsel
Debian Linux 4.0 mips
Debian Linux 4.0 m68k
Debian Linux 4.0 ia-64
Debian Linux 4.0 ia-32
Debian Linux 4.0 hppa
Debian Linux 4.0 arm
Debian Linux 4.0 amd64
Debian Linux 4.0 alpha
Debian Linux 4.0
Avaya Messaging Storage Server MM3.0
Avaya Messaging Storage Server 3.1
Avaya Messaging Storage Server 2.0
Avaya Messaging Storage Server 1.0
Avaya Messaging Storage Server
Avaya Message Networking MN 3.1
Avaya Message Networking 3.1
Avaya Message Networking
Avaya Intuity AUDIX LX 2.0
Avaya Intuity LX 2.0
Avaya Intuity LX
Avaya Intuity AUDIX
Avaya EMMC 1.021
Avaya Communication Manager 2.0.1
+ Avaya Communication Manager Server DEFINITY Server SI/CS
+ Avaya Communication Manager Server S8100
+ Avaya Communication Manager Server S8100
+ Avaya Communication Manager Server S8300
+ Avaya Communication Manager Server S8300
+ Avaya Communication Manager Server S8500
+ Avaya Communication Manager Server S8500
+ Avaya Communication Manager Server S8700
+ Avaya Communication Manager Server S8700
Avaya Communication Manager 2.0
Avaya Communication Manager 5.0
Avaya Communication Manager 3.0
Avaya Communication Manager 2.2
+ Avaya Communication Manager Server DEFINITY Server SI/CS
+ Avaya Communication Manager Server S8100
+ Avaya Communication Manager Server S8300
+ Avaya Communication Manager Server S8500
+ Avaya Communication Manager Server S8700
Avaya Communication Manager 2.1
Avaya Aura SIP Enablement Services 3.1.1
Avaya Aura SIP Enablement Services 3.1
Avaya Aura SIP Enablement Services 3.0
Avaya Aura Application Enablement Services 3.1.3
Avaya Aura Application Enablement Services 4.1
Apple iPod Touch 1.1.4
Apple iPod Touch 1.1.3
Apple iPod Touch 1.1.2
Apple iPod Touch 1.1.1
Apple iPod Touch 1.1
Apple iPod Touch 0
Apple iPhone 1.1.4
Apple iPhone 1.1.3
Apple iPhone 1.1.2
Apple iPhone 1.1.1
Apple iPhone 1.0.2
Apple iPhone 1.0.1
Apple iPhone 1.1
Apple iPhone 1
Apple iPhone 0
Not Vulnerable: VMWare ESX Server 2.5.5 patch 6
VMWare ESX Server 2.5.4 Patch 17
VideoLAN VLC media player 0.8.6 h
Apple iPod Touch 2.0
Apple iPhone 2.0

Discussion

libxml2 'xmlCurrentChar()' UTF-8 Parsing Remote Denial of Service Vulnerability

The libxml2 library is prone to a denial-of-service vulnerability because of an infinite-loop flaw.

Exploiting this issue allows remote attackers to cause denial-of-service conditions in the context of an application using the vulnerable library.

Versions prior to libxml2 2.6.31 are affected by this issue.

Exploit / POC

libxml2 'xmlCurrentChar()' UTF-8 Parsing Remote Denial of Service Vulnerability

Currently we are not aware of any working exploits for this issue. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

Solution / Fix

libxml2 'xmlCurrentChar()' UTF-8 Parsing Remote Denial of Service Vulnerability

Solution:
The vendor released an upgraded version of libxml2 along with patches. Please see the references for more information.


VideoLAN VLC media player 0.8.6f

VideoLAN VLC media player 0.8.6b

VideoLAN VLC media player 0.8.6e

VideoLAN VLC media player 0.8.6 g

VideoLAN VLC media player 0.8.6 d

VideoLAN VLC media player 0.8.6

References

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