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TI-2009-01206 Aliases CVE-2009-1271GHSA-2c9q-p5rf-5vp8

The JSON_parser function (ext/json/JSON_parser.c) in PHP 5.2.x before 5.2.9 allows remote…

Priority LOW 27Published · 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
None · None · Partial
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.

Summary

The JSON_parser function (ext/json/JSON_parser.c) in PHP 5.2.x before 5.2.9 allows remote attackers to cause a denial of service (segmentation fault) via a malformed string to the json_decode API function.

Why it matters now

EPSS 0.02396 84th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory

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 · 10

CPEVersionsRoleVendor
cpe:2.3:a:php:php:5.2.0:*:*:*:*:*:*:*5.2.0VulnerablePHP
cpe:2.3:a:php:php:5.2.1:*:*:*:*:*:*:*5.2.1VulnerablePHP
cpe:2.3:a:php:php:5.2.2:*:*:*:*:*:*:*5.2.2VulnerablePHP
cpe:2.3:a:php:php:5.2.3:*:*:*:*:*:*:*5.2.3VulnerablePHP
cpe:2.3:a:php:php:5.2.4:*:*:*:*:*:*:*5.2.4VulnerablePHP
cpe:2.3:a:php:php:5.2.4:*:windows:*:*:*:*:*5.2.4VulnerablePHP
cpe:2.3:a:php:php:5.2.5:*:*:*:*:*:*:*5.2.5VulnerablePHP
cpe:2.3:a:php:php:5.2.6:*:*:*:*:*:*:*5.2.6VulnerablePHP
cpe:2.3:a:php:php:5.2.7:*:*:*:*:*:*:*5.2.7VulnerablePHP
cpe:2.3:a:php:php:5.2.8:*:*:*:*:*:*:*5.2.8VulnerablePHP
  • cpe:2.3:a:php:php:5.2.0:*:*:*:*:*:*:* Versions 5.2.0 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.2.1:*:*:*:*:*:*:* Versions 5.2.1 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.2.2:*:*:*:*:*:*:* Versions 5.2.2 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.2.3:*:*:*:*:*:*:* Versions 5.2.3 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.2.4:*:*:*:*:*:*:* Versions 5.2.4 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.2.4:*:windows:*:*:*:*:* Versions 5.2.4 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.2.5:*:*:*:*:*:*:* Versions 5.2.5 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.2.6:*:*:*:*:*:*:* Versions 5.2.6 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.2.7:*:*:*:*:*:*:* Versions 5.2.7 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.2.8:*:*:*:*:*:*:* Versions 5.2.8 Vulnerable ·PHP

Remediation

Red Hat 1 advisory

  • RHSA-2009:0350 Released 2009-04-14 · Red Hat rating Moderate
    php security update
    • Red Hat Application Stack v2 for Enterprise Linux (v.5) php-5.2.6-4.el5s2, php-5.2.6-4.el5s2.i386, php-bcmath-5.2.6-4.el5s2 +35

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2009-1271
  2. 2026-10-03 Alias added: GHSA-2c9q-p5rf-5vp8

References

Advisory 11

Other 3

  • 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