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TI-2016-04677 Aliases CVE-2016-5399GHSA-3wxp-gf5c-jh8g

The bzread function in ext/bz2/bz2.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x…

Priority MEDIUM 46CWE-787Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 13 fixed, 3 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.

Summary

The bzread function in ext/bz2/bz2.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 allows remote attackers to cause a denial of service (out-of-bounds write) or execute arbitrary code via a crafted bz2 archive.

Why it matters now

EPSS 0.09844 95th percentileScored 2026-11-07
Public exploit Yes 5 exploit referencesTagged by NVD and the CNA
Fix Partial Red Hat: 2 advisoriesRed Hat: 13 fixed, 3 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 · 1

CPEVersionsRoleVendor
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*up to 5.5.37; 5.6.0 to before 5.6.24; 7.0.0 to before 7.0.9VulnerablePHP
  • cpe:2.3:a:php:php:*:*:*:*:*:*:*:* Versions up to 5.5.37; 5.6.0 to before 5.6.24; 7.0.0 to before 7.0.9 Vulnerable ·PHP

Remediation

Red Hat 2 advisories

  • RHSA-2016:2750 Released 2016-11-15 · Red Hat rating Moderate
    rh-php56 security, bug fix, and enhancement update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) rh-php56-2.3-1.el6, rh-php56-php-5.6.25-1.el6, rh-php56-php-bcmath-5.6.25-1.el6 +30
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-php56-2.3-1.el7, rh-php56-php-5.6.25-1.el7, rh-php56-php-bcmath-5.6.25-1.el7 +28
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) rh-php56-2.3-1.el6, rh-php56-php-5.6.25-1.el6, rh-php56-php-bcmath-5.6.25-1.el6 +30
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.2) rh-php56-2.3-1.el7, rh-php56-php-5.6.25-1.el7, rh-php56-php-bcmath-5.6.25-1.el7 +28
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.3) rh-php56-2.3-1.el7, rh-php56-php-5.6.25-1.el7, rh-php56-php-bcmath-5.6.25-1.el7 +28
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) rh-php56-2.3-1.el6, rh-php56-php-5.6.25-1.el6, rh-php56-php-bcmath-5.6.25-1.el6 +30
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-php56-2.3-1.el7, rh-php56-php-5.6.25-1.el7, rh-php56-php-bcmath-5.6.25-1.el7 +28
  • RHSA-2016:2598 Released 2016-11-03 · Red Hat rating Moderate
    php security and bug fix update
    • Red Hat Enterprise Linux Client Optional (v. 7) php-5.4.16-42.el7, php-bcmath-5.4.16-42.el7, php-cli-5.4.16-42.el7 +22
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) php-5.4.16-42.el7, php-bcmath-5.4.16-42.el7, php-cli-5.4.16-42.el7 +22
    • Red Hat Enterprise Linux Server (v. 7) php-5.4.16-42.el7, php-cli-5.4.16-42.el7, php-common-5.4.16-42.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7) php-bcmath-5.4.16-42.el7, php-dba-5.4.16-42.el7, php-devel-5.4.16-42.el7 +8
    • Red Hat Enterprise Linux Workstation (v. 7) php-5.4.16-42.el7, php-cli-5.4.16-42.el7, php-common-5.4.16-42.el7 +11
    • Red Hat Enterprise Linux Workstation Optional (v. 7) php-bcmath-5.4.16-42.el7, php-dba-5.4.16-42.el7, php-devel-5.4.16-42.el7 +8

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Will not fix
Red Hat Software CollectionsAffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2016:2598
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2016:2598
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2016:2598
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2016:2598
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2016:2598
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2016:2598
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7)Fixed RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.2)Fixed RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.3)Fixed RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2016:2750
Not affected: 1 product
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-5399
  2. 2026-10-03 Alias added: GHSA-3wxp-gf5c-jh8g

References

Exploit 5

Advisory 7

  • 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