PHP 'snmp.c' Denial of Service Vulnerability

PHP is prone to a denial-of-service vulnerability.

Successful exploits may allow the attacker to crash the affected application resulting in denial-of-service condition.

This issue is fixed in PHP versions 7.0.9, 5.6.24 and 5.5.38.

Information

Bugtraq ID: 92094
Class: Design Error
CVE: CVE-2016-6295

Remote: Yes
Local: No
Published: Jul 19 2016 12:00AM
Updated: Apr 19 2017 06:05PM
Credit: taoguangchen
Vulnerable: PHP PHP 7.0.5
PHP PHP 7.0.3
PHP PHP 7.0
PHP PHP 5.6.22
PHP PHP 5.6.21
PHP PHP 5.6.20
PHP PHP 5.6.19
PHP PHP 5.6.18
PHP PHP 5.6.17
PHP PHP 5.6.13
PHP PHP 5.6.12
PHP PHP 5.6.11
PHP PHP 5.6.5
PHP PHP 5.6.4
PHP PHP 5.6.1
PHP PHP 5.6
PHP PHP 5.5.35
PHP PHP 5.5.34
PHP PHP 5.5.33
PHP PHP 5.5.32
PHP PHP 5.5.29
PHP PHP 5.5.28
PHP PHP 5.5.27
PHP PHP 5.5.26
PHP PHP 5.5.21
PHP PHP 5.5.14
+ Mandriva Linux Mandrake 10.1 x86_64
+ Mandriva Linux Mandrake 10.1
+ S.u.S.E. Linux Personal 9.2
+ Turbolinux Turbolinux Server 10.0
+ Ubuntu Ubuntu Linux 4.1 ppc
+ Ubuntu Ubuntu Linux 4.1 ia64
+ Ubuntu Ubuntu Linux 4.1 ia32
PHP PHP 5.5.13
PHP PHP 5.5.12
PHP PHP 5.5.11
PHP PHP 5.5.10
PHP PHP 5.5.6
PHP PHP 5.5.5
PHP PHP 5.5.4
PHP PHP 5.5.3
PHP PHP 5.5.1
PHP PHP 5.5
PHP PHP 7.0.8
PHP PHP 7.0.7
PHP PHP 7.0.6
PHP PHP 7.0.4
PHP PHP 7.0.2
PHP PHP 7.0.1
PHP PHP 5.6.9
PHP PHP 5.6.8
PHP PHP 5.6.7
PHP PHP 5.6.6
PHP PHP 5.6.3
PHP PHP 5.6.23
PHP PHP 5.6.2
PHP PHP 5.6.14
PHP PHP 5.6.10
PHP PHP 5.5.37
PHP PHP 5.5.36
PHP PHP 5.5.31
PHP PHP 5.5.30
PHP PHP 5.5.25
PHP PHP 5.5.24
PHP PHP 5.5.23
PHP PHP 5.5.22
PHP PHP 5.5.20
PHP PHP 5.5.2
PHP PHP 5.5.19
PHP PHP 5.5.18
PHP PHP 5.5.17
PHP PHP 5.5.16
PHP PHP 5.5.15
Oracle Secure Backup 10.4 1
Oracle Secure Backup 12.1.0.2.0
Oracle Secure Backup 12.1
Oracle Secure Backup 10.4.0.4.0
Oracle Secure Backup 10.3.0.3
Oracle Secure Backup 10.3.0.2
Oracle Secure Backup 10.3.0.1.0
Oracle Secure Backup 10.2.0.3
Oracle Secure Backup 10.2.0.2
Oracle Secure Backup 10.1.0.3
Oracle Secure Backup 10.1.0.2
Oracle Secure Backup 10.1.0.1
IBM Tealeaf Customer Experience on Cloud Network Capture Add-On 16.1.01
HP StoreEver MSL6480 Tape Library 4.90
HP StoreEver MSL6480 Tape Library 4.40
HP StoreEver MSL6480 Tape Library 4.10
Gentoo Linux
Apple Mac Os X 10.11.6

Not Vulnerable: PHP PHP 5.5.38
PHP PHP 7.0.9
PHP PHP 5.6.24
Oracle Secure Backup 12.1.0.3
HP StoreEver MSL6480 Tape Library 5.10
Apple macOS 10.12

Exploit

The researcher who discovered this issue has created a proof-of-concept. Please see the references for more information.

References:

• Mac OS X Homepage (Apple)
  
• PHP 5 ChangeLog (PHP)
  
• PHP 7 ChangeLog (PHP)
  
• PHP Homepage (PHP)
  
• #72479 Use After Free Vulnerability in SNMP with GC and unserialize() (PHP)
  
• HPSBST03671 rev.1 - HPE StoreEver MSL6480 Tape Library, Remote Unauthorized Disc (HP)
  
• Oracle Critical Patch Update Advisory - April 2017 (Oracle)
  
• swg21994534: Multiple security issues in IBM Tealeaf Customer Experience on Clou (IBM)
  

Source: www.securityfocus.com