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TI-2015-05733 Aliases CVE-2015-6834GHSA-6m7q-7r8q-jg24

Multiple use-after-free vulnerabilities in PHP before 5.4.45, 5.5.x before 5.5.29, and…

Priority HIGH 72Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 8 fixed, 2 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.

Summary

Multiple use-after-free vulnerabilities in PHP before 5.4.45, 5.5.x before 5.5.29, and 5.6.x before 5.6.13 allow remote attackers to execute arbitrary code via vectors related to (1) the Serializable interface, (2) the SplObjectStorage class, and (3) the SplDoublyLinkedList class, which are mishandled during unserialization.

Why it matters now

EPSS 0.46801 98th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 8 fixed, 2 without a fix

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 · 43

CPEVersionsRoleVendor
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*up to 5.4.44VulnerablePHP
cpe:2.3:a:php:php:5.5.0:*:*:*:*:*:*:*5.5.0VulnerablePHP
cpe:2.3:a:php:php:5.5.1:*:*:*:*:*:*:*5.5.1VulnerablePHP
cpe:2.3:a:php:php:5.5.2:*:*:*:*:*:*:*5.5.2VulnerablePHP
cpe:2.3:a:php:php:5.5.3:*:*:*:*:*:*:*5.5.3VulnerablePHP
cpe:2.3:a:php:php:5.5.4:*:*:*:*:*:*:*5.5.4VulnerablePHP
cpe:2.3:a:php:php:5.5.5:*:*:*:*:*:*:*5.5.5VulnerablePHP
cpe:2.3:a:php:php:5.5.6:*:*:*:*:*:*:*5.5.6VulnerablePHP
cpe:2.3:a:php:php:5.5.7:*:*:*:*:*:*:*5.5.7VulnerablePHP
cpe:2.3:a:php:php:5.5.8:*:*:*:*:*:*:*5.5.8VulnerablePHP
  • cpe:2.3:a:php:php:*:*:*:*:*:*:*:* Versions up to 5.4.44 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.0:*:*:*:*:*:*:* Versions 5.5.0 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.1:*:*:*:*:*:*:* Versions 5.5.1 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.2:*:*:*:*:*:*:* Versions 5.5.2 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.3:*:*:*:*:*:*:* Versions 5.5.3 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.4:*:*:*:*:*:*:* Versions 5.5.4 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.5:*:*:*:*:*:*:* Versions 5.5.5 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.6:*:*:*:*:*:*:* Versions 5.5.6 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.7:*:*:*:*:*:*:* Versions 5.5.7 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.8:*:*:*:*:*:*:* Versions 5.5.8 Vulnerable ·PHP
Show 33 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:php:php:5.5.9:*:*:*:*:*:*:*5.5.9VulnerablePHP
cpe:2.3:a:php:php:5.5.10:*:*:*:*:*:*:*5.5.10VulnerablePHP
cpe:2.3:a:php:php:5.5.11:*:*:*:*:*:*:*5.5.11VulnerablePHP
cpe:2.3:a:php:php:5.5.12:*:*:*:*:*:*:*5.5.12VulnerablePHP
cpe:2.3:a:php:php:5.5.13:*:*:*:*:*:*:*5.5.13VulnerablePHP
cpe:2.3:a:php:php:5.5.14:*:*:*:*:*:*:*5.5.14VulnerablePHP
cpe:2.3:a:php:php:5.5.15:*:*:*:*:*:*:*5.5.15VulnerablePHP
cpe:2.3:a:php:php:5.5.16:*:*:*:*:*:*:*5.5.16VulnerablePHP
cpe:2.3:a:php:php:5.5.17:*:*:*:*:*:*:*5.5.17VulnerablePHP
cpe:2.3:a:php:php:5.5.18:*:*:*:*:*:*:*5.5.18VulnerablePHP
cpe:2.3:a:php:php:5.5.19:*:*:*:*:*:*:*5.5.19VulnerablePHP
cpe:2.3:a:php:php:5.5.20:*:*:*:*:*:*:*5.5.20VulnerablePHP
cpe:2.3:a:php:php:5.5.21:*:*:*:*:*:*:*5.5.21VulnerablePHP
cpe:2.3:a:php:php:5.5.22:*:*:*:*:*:*:*5.5.22VulnerablePHP
cpe:2.3:a:php:php:5.5.23:*:*:*:*:*:*:*5.5.23VulnerablePHP
cpe:2.3:a:php:php:5.5.24:*:*:*:*:*:*:*5.5.24VulnerablePHP
cpe:2.3:a:php:php:5.5.25:*:*:*:*:*:*:*5.5.25VulnerablePHP
cpe:2.3:a:php:php:5.5.26:*:*:*:*:*:*:*5.5.26VulnerablePHP
cpe:2.3:a:php:php:5.5.27:*:*:*:*:*:*:*5.5.27VulnerablePHP
cpe:2.3:a:php:php:5.5.28:*:*:*:*:*:*:*5.5.28VulnerablePHP
cpe:2.3:a:php:php:5.6.0:*:*:*:*:*:*:*5.6.0VulnerablePHP
cpe:2.3:a:php:php:5.6.1:*:*:*:*:*:*:*5.6.1VulnerablePHP
cpe:2.3:a:php:php:5.6.2:*:*:*:*:*:*:*5.6.2VulnerablePHP
cpe:2.3:a:php:php:5.6.3:*:*:*:*:*:*:*5.6.3VulnerablePHP
cpe:2.3:a:php:php:5.6.4:*:*:*:*:*:*:*5.6.4VulnerablePHP
cpe:2.3:a:php:php:5.6.5:*:*:*:*:*:*:*5.6.5VulnerablePHP
cpe:2.3:a:php:php:5.6.6:*:*:*:*:*:*:*5.6.6VulnerablePHP
cpe:2.3:a:php:php:5.6.7:*:*:*:*:*:*:*5.6.7VulnerablePHP
cpe:2.3:a:php:php:5.6.8:*:*:*:*:*:*:*5.6.8VulnerablePHP
cpe:2.3:a:php:php:5.6.9:*:*:*:*:*:*:*5.6.9VulnerablePHP
cpe:2.3:a:php:php:5.6.10:*:*:*:*:*:*:*5.6.10VulnerablePHP
cpe:2.3:a:php:php:5.6.11:*:*:*:*:*:*:*5.6.11VulnerablePHP
cpe:2.3:a:php:php:5.6.12:*:*:*:*:*:*:*5.6.12VulnerablePHP
  • cpe:2.3:a:php:php:5.5.9:*:*:*:*:*:*:* Versions 5.5.9 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.10:*:*:*:*:*:*:* Versions 5.5.10 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.11:*:*:*:*:*:*:* Versions 5.5.11 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.12:*:*:*:*:*:*:* Versions 5.5.12 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.13:*:*:*:*:*:*:* Versions 5.5.13 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.14:*:*:*:*:*:*:* Versions 5.5.14 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.15:*:*:*:*:*:*:* Versions 5.5.15 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.16:*:*:*:*:*:*:* Versions 5.5.16 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.17:*:*:*:*:*:*:* Versions 5.5.17 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.18:*:*:*:*:*:*:* Versions 5.5.18 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.19:*:*:*:*:*:*:* Versions 5.5.19 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.20:*:*:*:*:*:*:* Versions 5.5.20 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.21:*:*:*:*:*:*:* Versions 5.5.21 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.22:*:*:*:*:*:*:* Versions 5.5.22 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.23:*:*:*:*:*:*:* Versions 5.5.23 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.24:*:*:*:*:*:*:* Versions 5.5.24 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.25:*:*:*:*:*:*:* Versions 5.5.25 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.26:*:*:*:*:*:*:* Versions 5.5.26 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.27:*:*:*:*:*:*:* Versions 5.5.27 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.5.28:*:*:*:*:*:*:* Versions 5.5.28 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.6.0:*:*:*:*:*:*:* Versions 5.6.0 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.6.1:*:*:*:*:*:*:* Versions 5.6.1 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.6.2:*:*:*:*:*:*:* Versions 5.6.2 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.6.3:*:*:*:*:*:*:* Versions 5.6.3 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.6.4:*:*:*:*:*:*:* Versions 5.6.4 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.6.5:*:*:*:*:*:*:* Versions 5.6.5 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.6.6:*:*:*:*:*:*:* Versions 5.6.6 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.6.7:*:*:*:*:*:*:* Versions 5.6.7 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.6.8:*:*:*:*:*:*:* Versions 5.6.8 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.6.9:*:*:*:*:*:*:* Versions 5.6.9 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.6.10:*:*:*:*:*:*:* Versions 5.6.10 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.6.11:*:*:*:*:*:*:* Versions 5.6.11 Vulnerable ·PHP
  • cpe:2.3:a:php:php:5.6.12:*:*:*:*:*:*:* Versions 5.6.12 Vulnerable ·PHP

Remediation

Red Hat 1 advisory

  • RHSA-2016:0457 Released 2016-03-15 · Red Hat rating Moderate
    rh-php56-php security update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) rh-php56-php-5.6.5-8.el6, rh-php56-php-bcmath-5.6.5-8.el6, rh-php56-php-cli-5.6.5-8.el6 +26
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-php56-php-5.6.5-8.el7, rh-php56-php-bcmath-5.6.5-8.el7, rh-php56-php-cli-5.6.5-8.el7 +24
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.6) rh-php56-php-5.6.5-8.el6, rh-php56-php-bcmath-5.6.5-8.el6, rh-php56-php-cli-5.6.5-8.el6 +26
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) rh-php56-php-5.6.5-8.el6, rh-php56-php-bcmath-5.6.5-8.el6, rh-php56-php-cli-5.6.5-8.el6 +26
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.1) rh-php56-php-5.6.5-8.el7, rh-php56-php-bcmath-5.6.5-8.el7, rh-php56-php-cli-5.6.5-8.el7 +24
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.2) rh-php56-php-5.6.5-8.el7, rh-php56-php-bcmath-5.6.5-8.el7, rh-php56-php-cli-5.6.5-8.el7 +24
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) rh-php56-php-5.6.5-8.el6, rh-php56-php-bcmath-5.6.5-8.el6, rh-php56-php-cli-5.6.5-8.el6 +26
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-php56-php-5.6.5-8.el7, rh-php56-php-bcmath-5.6.5-8.el7, rh-php56-php-cli-5.6.5-8.el7 +24

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 7AffectedNo fix planned: Will not fix
Red Hat Software CollectionsAffectedNo fix planned: Will not fix
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2016:0457
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2016:0457
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.6)Fixed RHSA-2016:0457
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7)Fixed RHSA-2016:0457
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.1)Fixed RHSA-2016:0457
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.2)Fixed RHSA-2016:0457
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2016:0457
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2016:0457
Not affected: 2 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2015-6834
  2. 2026-10-03 Alias added: GHSA-6m7q-7r8q-jg24

References

Advisory 2

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