Python Expat Wrapper Library Unspecified XML Parsing Remote Denial of Service Vulnerability

BID:35988

Info

Python Expat Wrapper Library Unspecified XML Parsing Remote Denial of Service Vulnerability

Bugtraq ID: 35988
Class: Unknown
CVE:
Remote: Yes
Local: No
Published: Aug 07 2009 12:00AM
Updated: Aug 24 2009 10:23PM
Credit: Jukka Taimisto, Tero Rontti and Rauli Kaksonen from the CROSS project at Codenomicon Ltd
Vulnerable: Python Software Foundation Python 2.6.2
Python Software Foundation Python 2.5.3
Python Software Foundation Python 2.5.2 -r6
Python Software Foundation Python 2.5.2
Python Software Foundation Python 2.5.1
Python Software Foundation Python 2.4.5
Python Software Foundation Python 2.4.4 -r14
Python Software Foundation Python 2.4.4
Python Software Foundation Python 2.4.3
+ Trustix Secure Linux 3.0.5
Python Software Foundation Python 2.4.2
Python Software Foundation Python 2.4.1
Python Software Foundation Python 2.4
Python Software Foundation Python 2.3.6
Python Software Foundation Python 2.3.5
Python Software Foundation Python 2.3.4
+ Mandriva Linux Mandrake 10.1 x86_64
 + Mandriva Linux Mandrake 10.1
+ S.u.S.E. Linux Personal 9.2 x86_64
 + S.u.S.E. Linux Personal 9.2
+ Ubuntu Ubuntu Linux 4.1 ppc
 + Ubuntu Ubuntu Linux 4.1 ia64
 + Ubuntu Ubuntu Linux 4.1 ia32
 Python Software Foundation Python 2.3.3
+ MandrakeSoft Corporate Server 3.0 x86_64
 + MandrakeSoft Corporate Server 3.0
+ Mandriva Linux Mandrake 10.0 AMD64
 + Mandriva Linux Mandrake 10.0
+ Mandriva Linux Mandrake 9.2 amd64
 + Mandriva Linux Mandrake 9.2
+ S.u.S.E. Linux Personal 9.0 x86_64
 + S.u.S.E. Linux Personal 9.0
Python Software Foundation Python 2.3.2
Python Software Foundation Python 2.3.1
Python Software Foundation Python 2.3 b1
Python Software Foundation Python 2.3
+ S.u.S.E. Linux Personal 9.0 x86_64
 + S.u.S.E. Linux Personal 9.0
Python Software Foundation Python 2.2.3
+ Redhat Desktop 3.0
+ Redhat Enterprise Linux AS 3
 + Redhat Enterprise Linux ES 3
 + Redhat Enterprise Linux WS 3
 + Ubuntu Ubuntu Linux 4.1 ppc
 + Ubuntu Ubuntu Linux 4.1 ia64
 + Ubuntu Ubuntu Linux 4.1 ia32
 Python Software Foundation Python 2.2.2
+ OpenPKG OpenPKG 1.2
+ OpenPKG OpenPKG 1.2
+ Redhat Linux 7.3
+ Redhat Linux 7.3
+ S.u.S.E. Linux Personal 8.2
+ S.u.S.E. Linux Personal 8.2
Python Software Foundation Python 2.2.1
+ Debian Linux 3.0 sparc
 + Debian Linux 3.0 s/390
 + Debian Linux 3.0 ppc
 + Debian Linux 3.0 mipsel
 + Debian Linux 3.0 mips
 + Debian Linux 3.0 m68k
 + Debian Linux 3.0 ia-64
 + Debian Linux 3.0 ia-32
 + Debian Linux 3.0 hppa
 + Debian Linux 3.0 arm
 + Debian Linux 3.0 alpha
 + Debian Linux 3.0
+ Gentoo Linux 1.4 _rc1
 + Gentoo Linux 1.2
+ MandrakeSoft Corporate Server 2.1 x86_64
 + MandrakeSoft Corporate Server 2.1
+ Mandriva Linux Mandrake 9.0
+ OpenPKG OpenPKG 1.1
+ SuSE Linux 8.1
Python Software Foundation Python 2.2
+ Mandriva Linux Mandrake 8.2 ppc
 + Mandriva Linux Mandrake 8.2
+ Mandriva Linux Mandrake 8.1 ia64
 + Mandriva Linux Mandrake 8.1
Python Software Foundation Python 2.1.3
+ Debian Linux 3.0
Python Software Foundation Python 2.1.2
Python Software Foundation Python 2.1.1
+ Redhat Linux 7.2
+ Sun Linux 5.0.7
Python Software Foundation Python 2.1
+ 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 3.0 sparc
 + Debian Linux 3.0 s/390
 + Debian Linux 3.0 ppc
 + Debian Linux 3.0 mipsel
 + Debian Linux 3.0 mips
 + Debian Linux 3.0 m68k
 + Debian Linux 3.0 ia-64
 + Debian Linux 3.0 ia-32
 + Debian Linux 3.0 hppa
 + Debian Linux 3.0 arm
 + Debian Linux 3.0 alpha
 + Debian Linux 3.0
Python Software Foundation Python 2.0.1
Python Software Foundation Python 2.0
+ Mandriva Linux Mandrake 8.0 ppc
 + Mandriva Linux Mandrake 8.0
Python Software Foundation Python 2.5
Mandriva Linux Mandrake 2009.1 x86_64
Mandriva Linux Mandrake 2009.1
Mandriva Linux Mandrake 2009.0 x86_64
Mandriva Linux Mandrake 2009.0
Mandriva Linux Mandrake 2008.1 x86_64
Mandriva Linux Mandrake 2008.1
MandrakeSoft Multi Network Firewall 2.0
MandrakeSoft Enterprise Server 5 x86_64
MandrakeSoft Enterprise Server 5
MandrakeSoft Corporate Server 4.0 x86_64
MandrakeSoft Corporate Server 3.0 x86_64
MandrakeSoft Corporate Server 3.0
MandrakeSoft Corporate Server 4.0
Not Vulnerable:

Discussion

Python Expat Wrapper Library Unspecified XML Parsing Remote Denial of Service Vulnerability

Python's Expat wrapper library is prone to a denial-of-service vulnerability because it fails to properly handle crafted XML data.

This vulnerability may be similar to or related to the issue described in BID 35958 (Sun Java Runtime Environment XML Parsing Denial of Service Vulnerability).

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

Python 2.6.2 is vulnerable; other versions may also be affected.

Exploit / POC

Python Expat Wrapper Library Unspecified XML Parsing Remote Denial of Service Vulnerability

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

Solution / Fix

Python Expat Wrapper Library Unspecified XML Parsing Remote Denial of Service Vulnerability

Solution:
Updates are available. Please see the references for more information.


Mandriva Linux Mandrake 2008.1 x86_64

Mandriva Linux Mandrake 2008.1

Mandriva Linux Mandrake 2009.1 x86_64

MandrakeSoft Enterprise Server 5 x86_64

MandrakeSoft Enterprise Server 5

Mandriva Linux Mandrake 2009.0

MandrakeSoft Corporate Server 4.0

Mandriva Linux Mandrake 2009.0 x86_64

Mandriva Linux Mandrake 2009.1

MandrakeSoft Multi Network Firewall 2.0

MandrakeSoft Corporate Server 3.0 x86_64

MandrakeSoft Corporate Server 3.0

MandrakeSoft Corporate Server 4.0 x86_64

References

Python Expat Wrapper Library Unspecified XML Parsing Remote Denial of Service Vulnerability

References:

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