PHP 'php_dechunk()' HTTP Chunked Encoding Integer Overflow Vulnerability

BID:39877

Info

PHP 'php_dechunk()' HTTP Chunked Encoding Integer Overflow Vulnerability

Bugtraq ID: 39877
Class: Boundary Condition Error
CVE: CVE-2010-1866
Remote: Yes
Local: No
Published: May 02 2010 12:00AM
Updated: Sep 21 2010 06:11PM
Credit: Stefan Esser
Vulnerable: Ubuntu Ubuntu Linux 9.10 sparc
Ubuntu Ubuntu Linux 9.10 powerpc
Ubuntu Ubuntu Linux 9.10 lpia
Ubuntu Ubuntu Linux 9.10 i386
Ubuntu Ubuntu Linux 9.10 amd64
Ubuntu Ubuntu Linux 9.04 sparc
Ubuntu Ubuntu Linux 9.04 powerpc
Ubuntu Ubuntu Linux 9.04 lpia
Ubuntu Ubuntu Linux 9.04 i386
Ubuntu Ubuntu Linux 9.04 amd64
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 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
Ubuntu Ubuntu Linux 10.04 sparc
Ubuntu Ubuntu Linux 10.04 powerpc
Ubuntu Ubuntu Linux 10.04 i386
Ubuntu Ubuntu Linux 10.04 amd64
SuSE SUSE Linux Enterprise 11 SP1
SuSE SUSE Linux Enterprise 11
SuSE SUSE Linux Enterprise 10 SP3
S.u.S.E. openSUSE 11.3
S.u.S.E. openSUSE 11.2
S.u.S.E. openSUSE 11.1
PHP PHP 5.3.2
PHP PHP 5.3.1
PHP PHP 5.3
Not Vulnerable:

Discussion

PHP 'php_dechunk()' HTTP Chunked Encoding Integer Overflow Vulnerability

PHP is prone to a remote integer-overflow vulnerability.

An attacker can exploit this issue to execute arbitrary code in the context of the PHP process. Failed exploit attempts will result in a denial-of-service condition.

PHP 5.3.0 through 5.3.2 are vulnerable; other versions may also be affected.

Exploit / POC

PHP 'php_dechunk()' HTTP Chunked Encoding Integer Overflow Vulnerability

The following proof of concept is available:

Solution / Fix

PHP 'php_dechunk()' HTTP Chunked Encoding Integer Overflow Vulnerability

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


Ubuntu Ubuntu Linux 9.10 sparc

Ubuntu Ubuntu Linux 8.04 LTS powerpc

Ubuntu Ubuntu Linux 8.04 LTS sparc

Ubuntu Ubuntu Linux 9.10 powerpc

Ubuntu Ubuntu Linux 6.06 LTS sparc

Ubuntu Ubuntu Linux 6.06 LTS powerpc

Ubuntu Ubuntu Linux 8.04 LTS amd64

Ubuntu Ubuntu Linux 9.10 lpia

Ubuntu Ubuntu Linux 9.04 sparc

Ubuntu Ubuntu Linux 9.04 powerpc

Ubuntu Ubuntu Linux 8.04 LTS lpia

Ubuntu Ubuntu Linux 6.06 LTS i386

Ubuntu Ubuntu Linux 6.06 LTS amd64

Ubuntu Ubuntu Linux 10.04 powerpc

Ubuntu Ubuntu Linux 9.04 i386

Ubuntu Ubuntu Linux 9.04 lpia

Ubuntu Ubuntu Linux 9.10 i386

Ubuntu Ubuntu Linux 10.04 amd64

Ubuntu Ubuntu Linux 9.10 amd64

Ubuntu Ubuntu Linux 8.04 LTS i386

Ubuntu Ubuntu Linux 9.04 amd64

Ubuntu Ubuntu Linux 10.04 sparc

Ubuntu Ubuntu Linux 10.04 i386

References

PHP 'php_dechunk()' HTTP Chunked Encoding Integer Overflow Vulnerability

References:
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