Integer signedness error in emalloc() function for PHP before 4.3.2 allow remote…
Priority MEDIUM 48Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Integer signedness error in emalloc() function for PHP before 4.3.2 allow remote attackers to cause a denial of service (memory consumption) and possibly execute arbitrary code via negative arguments to functions such as (1) socket_recv, (2) socket_recvfrom, and possibly other functions.
Why it matters now
EPSS 0.14122 96th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 · 17
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:php:php:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | PHP |
| cpe:2.3:a:php:php:4.0.1:*:*:*:*:*:*:* | 4.0.1 | Vulnerable | PHP |
| cpe:2.3:a:php:php:4.0.2:*:*:*:*:*:*:* | 4.0.2 | Vulnerable | PHP |
| cpe:2.3:a:php:php:4.0.3:*:*:*:*:*:*:* | 4.0.3 | Vulnerable | PHP |
| cpe:2.3:a:php:php:4.0.4:*:*:*:*:*:*:* | 4.0.4 | Vulnerable | PHP |
| cpe:2.3:a:php:php:4.0.5:*:*:*:*:*:*:* | 4.0.5 | Vulnerable | PHP |
| cpe:2.3:a:php:php:4.0.6:*:*:*:*:*:*:* | 4.0.6 | Vulnerable | PHP |
| cpe:2.3:a:php:php:4.0.7:*:*:*:*:*:*:* | 4.0.7 | Vulnerable | PHP |
| cpe:2.3:a:php:php:4.1.0:*:*:*:*:*:*:* | 4.1.0 | Vulnerable | PHP |
| cpe:2.3:a:php:php:4.1.1:*:*:*:*:*:*:* | 4.1.1 | Vulnerable | PHP |
- 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:4.0.2:*:*:*:*:*:*:* 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:4.0.4:*:*:*:*:*:*:* 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
- cpe:2.3:a:php:php:4.0.7:*:*:*:*:*:*:* Versions 4.0.7 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
Show 7 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:php:php:4.1.2:*:*:*:*:*:*:* | 4.1.2 | Vulnerable | PHP |
| cpe:2.3:a:php:php:4.2.0:*:*:*:*:*:*:* | 4.2.0 | Vulnerable | PHP |
| cpe:2.3:a:php:php:4.2.1:*:*:*:*:*:*:* | 4.2.1 | Vulnerable | PHP |
| cpe:2.3:a:php:php:4.2.2:*:*:*:*:*:*:* | 4.2.2 | Vulnerable | PHP |
| cpe:2.3:a:php:php:4.2.3:*:*:*:*:*:*:* | 4.2.3 | Vulnerable | PHP |
| cpe:2.3:a:php:php:4.3.0:*:*:*:*:*:*:* | 4.3.0 | Vulnerable | PHP |
| cpe:2.3:a:php:php:4.3.1:*:*:*:*:*:*:* | 4.3.1 | Vulnerable | PHP |
- cpe:2.3:a:php:php:4.1.2:*:*:*:*:*:*:* Versions 4.1.2 Vulnerable ·PHP
- cpe:2.3:a:php:php:4.2.0:*:*:*:*:*:*:* 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:4.3.0:*:*:*:*:*:*:* Versions 4.3.0 Vulnerable ·PHP
- cpe:2.3:a:php:php:4.3.1:*:*:*:*:*:*:* Versions 4.3.1 Vulnerable ·PHP
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2003-0166
- 2026-10-03 Alias added: GHSA-4xfp-7xc2-6c73
References
More Php vulnerabilities
- 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
Sources
- CVE-2003-0166 · CVE Program
- CVE-2003-0166 · NVD
- FIRST EPSS
- GHSA-4xfp-7xc2-6c73 · GitHub Advisory Database · CC BY 4.0
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