Read the docs
TI-2011-01224 Aliases CVE-2011-1398GHSA-g6fq-45x6-cmh4

The sapi_header_op function in main/SAPI.c in PHP before 5.3.11 and 5.4.x before 5.4.0RC2…

Priority LOW 33CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Medium
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

The sapi_header_op function in main/SAPI.c in PHP before 5.3.11 and 5.4.x before 5.4.0RC2 does not check for %0D sequences (aka carriage return characters), which allows remote attackers to bypass an HTTP response-splitting protection mechanism via a crafted URL, related to improper interaction between the PHP header function and certain browsers, as demonstrated by Internet Explorer and Google Chrome.

Why it matters now

EPSS 0.10173 95th 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

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

CPE configurations NVD · 11

CPEVersionsRoleVendor
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*up to 5.3.10VulnerablePHP
cpe:2.3:a:php:php:5.3.0:*:*:*:*:*:*:*5.3.0VulnerablePHP
cpe:2.3:a:php:php:5.3.1:*:*:*:*:*:*:*5.3.1VulnerablePHP
cpe:2.3:a:php:php:5.3.2:*:*:*:*:*:*:*5.3.2VulnerablePHP
cpe:2.3:a:php:php:5.3.3:*:*:*:*:*:*:*5.3.3VulnerablePHP
cpe:2.3:a:php:php:5.3.4:*:*:*:*:*:*:*5.3.4VulnerablePHP
cpe:2.3:a:php:php:5.3.5:*:*:*:*:*:*:*5.3.5VulnerablePHP
cpe:2.3:a:php:php:5.3.6:*:*:*:*:*:*:*5.3.6VulnerablePHP
cpe:2.3:a:php:php:5.3.7:*:*:*:*:*:*:*5.3.7VulnerablePHP
cpe:2.3:a:php:php:5.3.8:*:*:*:*:*:*:*5.3.8VulnerablePHP
  • cpe:2.3:a:php:php:*:*:*:*:*:*:*:* Versions up to 5.3.10 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.3.0:*:*:*:*:*:*:* Versions 5.3.0 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.3.1:*:*:*:*:*:*:* Versions 5.3.1 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.3.2:*:*:*:*:*:*:* Versions 5.3.2 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.3.3:*:*:*:*:*:*:* Versions 5.3.3 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.3.4:*:*:*:*:*:*:* Versions 5.3.4 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.3.5:*:*:*:*:*:*:* Versions 5.3.5 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.3.6:*:*:*:*:*:*:* Versions 5.3.6 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.3.7:*:*:*:*:*:*:* Versions 5.3.7 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.3.8:*:*:*:*:*:*:* Versions 5.3.8 Vulnerable ·PHP
Show 1 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:php:php:5.3.9:*:*:*:*:*:*:*5.3.9VulnerablePHP
  • cpe:2.3:a:php:php:5.3.9:*:*:*:*:*:*:* Versions 5.3.9 Vulnerable ·PHP

Remediation

Red Hat 3 advisories

  • RHSA-2013:1814 Released 2013-12-11 · Red Hat rating Critical
    php security update
    • Red Hat Enterprise Linux (v. 5 server) php-5.1.6-43.el5_10, php-5.1.6-43.el5_10.i386, php-5.1.6-43.el5_10.ia64 +47
    • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) php-5.1.6-43.el5_10, php-5.1.6-43.el5_10.i386, php-bcmath-5.1.6-43.el5_10 +35
  • RHSA-2013:1307 Released 2013-09-30 · Red Hat rating Moderate
    php53 security, bug fix and enhancement update
    • Red Hat Enterprise Linux (v. 5 server) php53-5.3.3-21.el5, php53-5.3.3-21.el5.i386, php53-5.3.3-21.el5.ia64 +47
    • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) php53-5.3.3-21.el5, php53-5.3.3-21.el5.i386, php53-bcmath-5.3.3-21.el5 +39
  • RHSA-2013:0514 Released 2013-02-20 · Red Hat rating Moderate
    php security, bug fix and enhancement update
    • Red Hat Enterprise Linux Desktop Optional (v. 6) php-5.3.3-22.el6, php-bcmath-5.3.3-22.el6, php-cli-5.3.3-22.el6 +24
    • Red Hat Enterprise Linux HPC Node (v. 6) php-5.3.3-22.el6, php-cli-5.3.3-22.el6, php-common-5.3.3-22.el6
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) php-5.3.3-22.el6, php-bcmath-5.3.3-22.el6, php-dba-5.3.3-22.el6 +22
    • Red Hat Enterprise Linux Server (v. 6) php-5.3.3-22.el6, php-cli-5.3.3-22.el6, php-common-5.3.3-22.el6 +9
    • Red Hat Enterprise Linux Server Optional (v. 6) php-5.3.3-22.el6, php-bcmath-5.3.3-22.el6, php-dba-5.3.3-22.el6 +13
    • Red Hat Enterprise Linux Workstation (v. 6) php-5.3.3-22.el6, php-cli-5.3.3-22.el6, php-common-5.3.3-22.el6 +9
    • Red Hat Enterprise Linux Workstation Optional (v. 6) php-5.3.3-22.el6, php-bcmath-5.3.3-22.el6, php-dba-5.3.3-22.el6 +13

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2013:1307, RHSA-2013:1814
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2013:0514
Red Hat Enterprise Linux Desktop Workstation (v. 5 client)Fixed RHSA-2013:1307, RHSA-2013:1814
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2013:0514
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2013:0514
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2013:0514
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2013:0514
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2013:0514
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2013:0514

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-1398
  2. 2026-10-03 Alias added: GHSA-g6fq-45x6-cmh4

References

Advisory 3

Other 5

  • 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