Integer overflow in memory allocation routines in PHP before 5.1.6, when running on a…
Priority LOW 18CWE-189Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- None · Partial · None
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
Integer overflow in memory allocation routines in PHP before 5.1.6, when running on a 64-bit system, allows context-dependent attackers to bypass the memory_limit restriction.
Why it matters now
EPSS 0.0236 83rd percentileScored 2026-11-07
Fix Fixed Red Hat: 3 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:php:php:5.1.0:*:*:*:*:*:*:* | 5.1.0 | Vulnerable | PHP |
| cpe:2.3:a:php:php:5.1.1:*:*:*:*:*:*:* | 5.1.1 | Vulnerable | PHP |
| cpe:2.3:a:php:php:5.1.2:*:*:*:*:*:*:* | 5.1.2 | Vulnerable | PHP |
| cpe:2.3:a:php:php:5.1.4:*:*:*:*:*:*:* | 5.1.4 | Vulnerable | PHP |
| cpe:2.3:a:php:php:5.1.5:*:*:*:*:*:*:* | 5.1.5 | 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:5.1.4:*:*:*:*:*:*:* Versions 5.1.4 Vulnerable ·PHP
- cpe:2.3:a:php:php:5.1.5:*:*:*:*:*:*:* Versions 5.1.5 Vulnerable ·PHP
Remediation
Red Hat 3 advisories
- RHSA-2006:0688 Released 2006-10-05 · Red Hat rating Importantphp 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
- RHSA-2006:0669 Released 2006-09-21 · Red Hat rating Moderatephp security update
- Red Hat Desktop version 3 php-4.3.2-36.ent, php-4.3.2-36.ent.i386, php-devel-4.3.2-36.ent +11
- Red Hat Enterprise Linux AS version 3 php-4.3.2-36.ent, php-4.3.2-36.ent.i386, php-4.3.2-36.ent.ia64 +25
- Red Hat Enterprise Linux AS version 4 php-4.3.9-3.18, php-4.3.9-3.18.i386, php-4.3.9-3.18.ia64 +47
- Red Hat Enterprise Linux Desktop version 4 php-4.3.9-3.18, php-4.3.9-3.18.i386, php-devel-4.3.9-3.18 +25
- Red Hat Enterprise Linux ES version 3 php-4.3.2-36.ent, php-4.3.2-36.ent.i386, php-4.3.2-36.ent.ia64 +18
- Red Hat Enterprise Linux ES version 4 php-4.3.9-3.18, php-4.3.9-3.18.i386, php-4.3.9-3.18.ia64 +39
- Red Hat Enterprise Linux WS version 3 php-4.3.2-36.ent, php-4.3.2-36.ent.i386, php-4.3.2-36.ent.ia64 +18
- Red Hat Enterprise Linux WS version 4 php-4.3.9-3.18, php-4.3.9-3.18.i386, php-4.3.9-3.18.ia64 +39
- RHSA-2006:0682 Released 2006-09-21 · Red Hat rating Moderatephp security update
- Red Hat Enterprise Linux AS (Advanced Server) version 2.1
- Red Hat Enterprise Linux ES version 2.1
- Red Hat Enterprise Linux WS version 2.1
- Red Hat Linux Advanced Workstation 2.1
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan 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 Desktop version 3 | Fixed | RHSA-2006:0669 |
| Red Hat Enterprise Linux AS (Advanced Server) version 2.1 | Fixed | RHSA-2006:0682 |
| Red Hat Enterprise Linux AS version 3 | Fixed | RHSA-2006:0669 |
| Red Hat Enterprise Linux AS version 4 | Fixed | RHSA-2006:0669 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2006:0669 |
| Red Hat Enterprise Linux ES version 2.1 | Fixed | RHSA-2006:0682 |
| Red Hat Enterprise Linux ES version 3 | Fixed | RHSA-2006:0669 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2006:0669 |
| Red Hat Enterprise Linux WS version 2.1 | Fixed | RHSA-2006:0682 |
| Red Hat Enterprise Linux WS version 3 | Fixed | RHSA-2006:0669 |
| Red Hat Enterprise Linux WS version 4 | Fixed | RHSA-2006:0669 |
| Red Hat Linux Advanced Workstation 2.1 | Fixed | RHSA-2006:0682 |
Timeline
- 2026-10-02 Threatist record created from CVE-2006-4486
- 2026-10-03 Alias added: GHSA-wmm8-4p47-889q
References
Patch 2
More Php vulnerabilities
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- 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
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- TI-2015-00205 Heap-based buffer overflow in the __nss_hostname_digits_dots function in glibc 2.2, and… CVSS 2.0HIGH 10.0
Sources
- CVE-2006-4486 · CVE Program
- CVE-2006-4486 · NVD
- FIRST EPSS
- GHSA-wmm8-4p47-889q · GitHub Advisory Database · CC BY 4.0
- CVE-2006-4486 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences