PHP 'tidy_diagnose()' NULL Pointer Dereference Denial Of Service Vulnerability

BID:51992

Info

PHP 'tidy_diagnose()' NULL Pointer Dereference Denial Of Service Vulnerability

Bugtraq ID: 51992
Class: Failure to Handle Exceptional Conditions
CVE: CVE-2012-0781
Remote: Yes
Local: No
Published: Feb 13 2012 12:00AM
Updated: Nov 14 2014 12:01AM
Credit: Maksymilian Arciemowicz
Vulnerable: Ubuntu Ubuntu Linux 8.04 LTS sparc
Ubuntu Ubuntu Linux 8.04 LTS powerpc
Ubuntu Ubuntu Linux 8.04 LTS lpia
Ubuntu Ubuntu Linux 8.04 LTS i386
Ubuntu Ubuntu Linux 8.04 LTS amd64
Ubuntu Ubuntu Linux 12.04 LTS i386
Ubuntu Ubuntu Linux 12.04 LTS amd64
Ubuntu Ubuntu Linux 11.10 i386
Ubuntu Ubuntu Linux 11.10 amd64
Ubuntu Ubuntu Linux 11.04 powerpc
Ubuntu Ubuntu Linux 11.04 i386
Ubuntu Ubuntu Linux 11.04 ARM
Ubuntu Ubuntu Linux 11.04 amd64
Ubuntu Ubuntu Linux 10.04 sparc
Ubuntu Ubuntu Linux 10.04 powerpc
Ubuntu Ubuntu Linux 10.04 i386
Ubuntu Ubuntu Linux 10.04 ARM
Ubuntu Ubuntu Linux 10.04 amd64
SuSE SUSE Linux Enterprise Server for VMware 11 SP1
+ Linux kernel 2.6.5
SuSE SUSE Linux Enterprise Server 11 SP2
+ Linux kernel 2.6.5
SuSE SUSE Linux Enterprise Server 11 SP1
+ Linux kernel 2.6.5
SuSE SUSE Linux Enterprise Server 10 SP4
+ Linux kernel 2.6.5
SuSE SUSE Linux Enterprise Server 10 SP3 LTSS
+ Linux kernel 2.6.5
SuSE SUSE Linux Enterprise SDK 11 SP2
SuSE SUSE Linux Enterprise SDK 11 SP1
SuSE SUSE Linux Enterprise SDK 10 SP4
Red Hat Enterprise Linux Workstation Optional 6
Red Hat Enterprise Linux Workstation 6
Red Hat Enterprise Linux Server Optional 6
Red Hat Enterprise Linux Server 6
Red Hat Enterprise Linux HPC Node Optional 6
Red Hat Enterprise Linux HPC Node 6
Red Hat Enterprise Linux Desktop Optional 6
PHP PHP 5.3.8
Oracle Enterprise Linux 6.2
Oracle Enterprise Linux 6
Debian Linux 6.0 sparc
Debian Linux 6.0 s/390
Debian Linux 6.0 powerpc
Debian Linux 6.0 mips
Debian Linux 6.0 ia-64
Debian Linux 6.0 ia-32
Debian Linux 6.0 arm
Debian Linux 6.0 amd64
Not Vulnerable:

Discussion

PHP 'tidy_diagnose()' NULL Pointer Dereference Denial Of Service Vulnerability

PHP is prone to a denial-of-service vulnerability caused by a NULL-pointer dereference.

An attacker can exploit this issue to cause an application written in PHP to crash, denying service to legitimate users.

PHP 5.3.8 is vulnerable; other versions may also be affected.

Exploit / POC

PHP 'tidy_diagnose()' NULL Pointer Dereference Denial Of Service Vulnerability

An attacker can use readily available tools to exploit these issues.

Solution / Fix

PHP 'tidy_diagnose()' NULL Pointer Dereference Denial Of Service Vulnerability

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

References

PHP 'tidy_diagnose()' NULL Pointer Dereference Denial Of Service Vulnerability

References:
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