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TI-2006-04646 Aliases CVE-2006-4812GHSA-2g5f-835h-7qjr

Integer overflow in PHP 5 up to 5.1.6 and 4 before 4.3.0 allows remote attackers to…

Priority MEDIUM 62CWE-94Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
Complete · Complete · Complete
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-94.

Summary

Integer overflow in PHP 5 up to 5.1.6 and 4 before 4.3.0 allows remote attackers to execute arbitrary code via an argument to the unserialize PHP function with a large value for the number of array elements, which triggers the overflow in the Zend Engine ecalloc function (Zend/zend_alloc.c).

Why it matters now

EPSS 0.20734 97th percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 38

CPEVersionsRoleVendor
cpe:2.3:a:php:php:4.0:*:*:*:*:*:*:*4.0VulnerablePHP
cpe:2.3:a:php:php:4.0.1:*:*:*:*:*:*:*4.0.1VulnerablePHP
cpe:2.3:a:php:php:4.0.1:patch1:*:*:*:*:*:*4.0.1 patch1VulnerablePHP
cpe:2.3:a:php:php:4.0.1:patch2:*:*:*:*:*:*4.0.1 patch2VulnerablePHP
cpe:2.3:a:php:php:4.0.2:*:*:*:*:*:*:*4.0.2VulnerablePHP
cpe:2.3:a:php:php:4.0.3:*:*:*:*:*:*:*4.0.3VulnerablePHP
cpe:2.3:a:php:php:4.0.3:patch1:*:*:*:*:*:*4.0.3 patch1VulnerablePHP
cpe:2.3:a:php:php:4.0.4:*:*:*:*:*:*:*4.0.4VulnerablePHP
cpe:2.3:a:php:php:4.0.5:*:*:*:*:*:*:*4.0.5VulnerablePHP
cpe:2.3:a:php:php:4.0.6:*:*:*:*:*:*:*4.0.6VulnerablePHP
  • cpe:2.3:a:php:php:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·PHP
  • cpe:2.3:a:php:php:4.0.1:*:*:*:*:*:*:* Versions 4.0.1 Vulnerable ·PHP
  • cpe:2.3:a:php:php:4.0.1:patch1:*:*:*:*:*:* Versions 4.0.1 patch1 Vulnerable ·PHP
  • cpe:2.3:a:php:php:4.0.1:patch2:*:*:*:*:*:* Versions 4.0.1 patch2 Vulnerable ·PHP
  • cpe:2.3:a:php:php:4.0.2:*:*:*:*:*:*:* Versions 4.0.2 Vulnerable ·PHP
  • cpe:2.3:a:php:php:4.0.3:*:*:*:*:*:*:* Versions 4.0.3 Vulnerable ·PHP
  • cpe:2.3:a:php:php:4.0.3:patch1:*:*:*:*:*:* Versions 4.0.3 patch1 Vulnerable ·PHP
  • cpe:2.3:a:php:php:4.0.4:*:*:*:*:*:*:* Versions 4.0.4 Vulnerable ·PHP
  • cpe:2.3:a:php:php:4.0.5:*:*:*:*:*:*:* Versions 4.0.5 Vulnerable ·PHP
  • cpe:2.3:a:php:php:4.0.6:*:*:*:*:*:*:* Versions 4.0.6 Vulnerable ·PHP
Show 28 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:php:php:4.0.7:*:*:*:*:*:*:*4.0.7VulnerablePHP
cpe:2.3:a:php:php:4.0.7:rc1:*:*:*:*:*:*4.0.7 rc1VulnerablePHP
cpe:2.3:a:php:php:4.0.7:rc2:*:*:*:*:*:*4.0.7 rc2VulnerablePHP
cpe:2.3:a:php:php:4.0.7:rc3:*:*:*:*:*:*4.0.7 rc3VulnerablePHP
cpe:2.3:a:php:php:4.1.0:*:*:*:*:*:*:*4.1.0VulnerablePHP
cpe:2.3:a:php:php:4.1.1:*:*:*:*:*:*:*4.1.1VulnerablePHP
cpe:2.3:a:php:php:4.1.2:*:*:*:*:*:*:*4.1.2VulnerablePHP
cpe:2.3:a:php:php:4.2:*:dev:*:*:*:*:*4.2VulnerablePHP
cpe:2.3:a:php:php:4.2.0:*:*:*:*:*:*:*4.2.0VulnerablePHP
cpe:2.3:a:php:php:4.2.1:*:*:*:*:*:*:*4.2.1VulnerablePHP
cpe:2.3:a:php:php:4.2.2:*:*:*:*:*:*:*4.2.2VulnerablePHP
cpe:2.3:a:php:php:4.2.3:*:*:*:*:*:*:*4.2.3VulnerablePHP
cpe:2.3:a:php:php:5.0:rc1:*:*:*:*:*:*5.0 rc1VulnerablePHP
cpe:2.3:a:php:php:5.0:rc2:*:*:*:*:*:*5.0 rc2VulnerablePHP
cpe:2.3:a:php:php:5.0:rc3:*:*:*:*:*:*5.0 rc3VulnerablePHP
cpe:2.3:a:php:php:5.0.0:*:*:*:*:*:*:*5.0.0VulnerablePHP
cpe:2.3:a:php:php:5.0.1:*:*:*:*:*:*:*5.0.1VulnerablePHP
cpe:2.3:a:php:php:5.0.2:*:*:*:*:*:*:*5.0.2VulnerablePHP
cpe:2.3:a:php:php:5.0.3:*:*:*:*:*:*:*5.0.3VulnerablePHP
cpe:2.3:a:php:php:5.0.4:*:*:*:*:*:*:*5.0.4VulnerablePHP
cpe:2.3:a:php:php:5.0.5:*:*:*:*:*:*:*5.0.5VulnerablePHP
cpe:2.3:a:php:php:5.1.0:*:*:*:*:*:*:*5.1.0VulnerablePHP
cpe:2.3:a:php:php:5.1.1:*:*:*:*:*:*:*5.1.1VulnerablePHP
cpe:2.3:a:php:php:5.1.2:*:*:*:*:*:*:*5.1.2VulnerablePHP
cpe:2.3:a:php:php:5.1.3:*:*:*:*:*:*:*5.1.3VulnerablePHP
cpe:2.3:a:php:php:5.1.4:*:*:*:*:*:*:*5.1.4VulnerablePHP
cpe:2.3:a:php:php:5.1.5:*:*:*:*:*:*:*5.1.5VulnerablePHP
cpe:2.3:a:php:php:5.1.6:*:*:*:*:*:*:*5.1.6VulnerablePHP
  • cpe:2.3:a:php:php:4.0.7:*:*:*:*:*:*:* Versions 4.0.7 Vulnerable ·PHP
  • cpe:2.3:a:php:php:4.0.7:rc1:*:*:*:*:*:* Versions 4.0.7 rc1 Vulnerable ·PHP
  • cpe:2.3:a:php:php:4.0.7:rc2:*:*:*:*:*:* Versions 4.0.7 rc2 Vulnerable ·PHP
  • cpe:2.3:a:php:php:4.0.7:rc3:*:*:*:*:*:* Versions 4.0.7 rc3 Vulnerable ·PHP
  • cpe:2.3:a:php:php:4.1.0:*:*:*:*:*:*:* Versions 4.1.0 Vulnerable ·PHP
  • cpe:2.3:a:php:php:4.1.1:*:*:*:*:*:*:* Versions 4.1.1 Vulnerable ·PHP
  • cpe:2.3:a:php:php:4.1.2:*:*:*:*:*:*:* Versions 4.1.2 Vulnerable ·PHP
  • cpe:2.3:a:php:php:4.2:*:dev:*:*:*:*:* Versions 4.2 Vulnerable ·PHP
  • cpe:2.3:a:php:php:4.2.0:*:*:*:*:*:*:* Versions 4.2.0 Vulnerable ·PHP
  • cpe:2.3:a:php:php:4.2.1:*:*:*:*:*:*:* Versions 4.2.1 Vulnerable ·PHP
  • cpe:2.3:a:php:php:4.2.2:*:*:*:*:*:*:* Versions 4.2.2 Vulnerable ·PHP
  • cpe:2.3:a:php:php:4.2.3:*:*:*:*:*:*:* Versions 4.2.3 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.0:rc1:*:*:*:*:*:* Versions 5.0 rc1 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.0:rc2:*:*:*:*:*:* Versions 5.0 rc2 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.0:rc3:*:*:*:*:*:* Versions 5.0 rc3 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.0.0:*:*:*:*:*:*:* Versions 5.0.0 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.0.1:*:*:*:*:*:*:* Versions 5.0.1 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.0.2:*:*:*:*:*:*:* Versions 5.0.2 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.0.3:*:*:*:*:*:*:* Versions 5.0.3 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.0.4:*:*:*:*:*:*:* Versions 5.0.4 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.0.5:*:*:*:*:*:*:* Versions 5.0.5 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.1.0:*:*:*:*:*:*:* Versions 5.1.0 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.1.1:*:*:*:*:*:*:* Versions 5.1.1 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.1.2:*:*:*:*:*:*:* Versions 5.1.2 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.1.3:*:*:*:*:*:*:* Versions 5.1.3 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.1.4:*:*:*:*:*:*:* Versions 5.1.4 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.1.5:*:*:*:*:*:*:* Versions 5.1.5 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.1.6:*:*:*:*:*:*:* Versions 5.1.6 Vulnerable ·PHP

Remediation

Red Hat 2 advisories

  • RHSA-2006:0708 Released 2006-10-05 · Red Hat rating Important
    php security update
    • Red Hat Enterprise Linux AS (Advanced Server) version 2.1 php-4.1.2-2.12, php-4.1.2-2.12.i386, php-4.1.2-2.12.ia64 +14
    • Red Hat Enterprise Linux ES version 2.1 php-4.1.2-2.12, php-4.1.2-2.12.i386, php-devel-4.1.2-2.12.i386 +6
    • Red Hat Enterprise Linux WS version 2.1 php-4.1.2-2.12, php-4.1.2-2.12.i386, php-devel-4.1.2-2.12.i386 +6
    • Red Hat Linux Advanced Workstation 2.1 php-4.1.2-2.12, php-4.1.2-2.12.ia64, php-devel-4.1.2-2.12.ia64 +6
  • RHSA-2006:0688 Released 2006-10-05 · Red Hat rating Important
    php security update
    • Red Hat Application Stack v1 for Enterprise Linux AS (v.4) php-5.1.4-1.el4s1.4, php-5.1.4-1.el4s1.4.i386, php-bcmath-5.1.4-1.el4s1.4 +31
    • Red Hat Application Stack v1 for Enterprise Linux ES (v.4) php-5.1.4-1.el4s1.4, php-5.1.4-1.el4s1.4.i386, php-bcmath-5.1.4-1.el4s1.4 +31

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Application Stack v1 for Enterprise Linux AS (v.4)Fixed RHSA-2006:0688
Red Hat Application Stack v1 for Enterprise Linux ES (v.4)Fixed RHSA-2006:0688
Red Hat Enterprise Linux AS (Advanced Server) version 2.1 Fixed RHSA-2006:0708
Red Hat Enterprise Linux ES version 2.1Fixed RHSA-2006:0708
Red Hat Enterprise Linux WS version 2.1Fixed RHSA-2006:0708
Red Hat Linux Advanced Workstation 2.1Fixed RHSA-2006:0708

Timeline

  1. 2026-10-02 Threatist record created from CVE-2006-4812
  2. 2026-10-03 Alias added: GHSA-2g5f-835h-7qjr

References

Patch 2

Advisory 7

Other 4

  • TI-2024-04260 Argument Injection in PHP-CGI KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2012-01607 sapi/cgi/cgi_main.c in PHP before 5.3.12 and 5.4.x before 5.4.2, when configured as a CGI… KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-78794 PHP remote code execution via stale global state KEVCVSS 4.0CRITICAL 9.2
  • TI-2026-78793 Out-of-memory handling flaw in PHP allows remote code execution KEVCVSS 4.0CRITICAL 9.2
  • TI-2015-00205 Heap-based buffer overflow in the __nss_hostname_digits_dots function in glibc 2.2, and… CVSS 2.0HIGH 10.0
See all 739 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences