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TI-2018-14754 Aliases CVE-2018-20783GHSA-gx4f-r59p-mgpx

In PHP before 5.6.39, 7.x before 7.0.33, 7.1.x before 7.1.25, and 7.2.x before 7.2.13, a…

Priority MEDIUM 41CWE-125Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Partial Red Hat: 7 fixed, 4 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.

Summary

In PHP before 5.6.39, 7.x before 7.0.33, 7.1.x before 7.1.25, and 7.2.x before 7.2.13, a buffer over-read in PHAR reading functions may allow an attacker to read allocated or unallocated memory past the actual data when trying to parse a .phar file. This is related to phar_parse_pharfile in ext/phar/phar.c.

Why it matters now

EPSS 0.0566 93rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 3 advisoriesRed Hat: 7 fixed, 4 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 · 2

CPEVersionsRoleVendor
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*before 5.6.39; 7.0.0 to before 7.0.33; 7.1.0 to before 7.1.25; 7.2.0 to before 7.2.13VulnerablePHP
cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*42.3VulnerableopenSUSE
  • cpe:2.3:a:php:php:*:*:*:*:*:*:*:* Versions before 5.6.39; 7.0.0 to before 7.0.33; 7.1.0 to before 7.1.25; 7.2.0 to before 7.2.13 Vulnerable ·PHP
  • cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:* Versions 42.3 Vulnerable ·openSUSE

Remediation

Red Hat 3 advisories

  • RHSA-2020:1624 Released 2020-04-28 · Red Hat rating Moderate
    php:7.2 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 8) apcu-panel-5.1.12-2.module+el8.1.0+3202+af5476b9.noarch::php:7.2, libzip-1.5.1-2.module+el8.1.0+3202+af5476b9.aarch64::php:7.2, libzip-1.5.1-2.module+el8.1.0+3202+af5476b9.ppc64le::php:7.2 +47
  • RHSA-2019:3299 Released 2019-11-01 · Red Hat rating Critical
    rh-php72-php security update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-php72-php-7.2.24-1.el7, rh-php72-php-bcmath-7.2.24-1.el7, rh-php72-php-cli-7.2.24-1.el7 +26
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5) rh-php72-php-7.2.24-1.el7, rh-php72-php-bcmath-7.2.24-1.el7, rh-php72-php-cli-7.2.24-1.el7 +26
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) rh-php72-php-7.2.24-1.el7, rh-php72-php-bcmath-7.2.24-1.el7, rh-php72-php-cli-7.2.24-1.el7 +26
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) rh-php72-php-7.2.24-1.el7, rh-php72-php-bcmath-7.2.24-1.el7, rh-php72-php-cli-7.2.24-1.el7 +26
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-php72-php-7.2.24-1.el7, rh-php72-php-bcmath-7.2.24-1.el7, rh-php72-php-cli-7.2.24-1.el7 +26
  • RHSA-2019:2519 Released 2019-08-19 · Red Hat rating Moderate
    rh-php71-php security, bug fix, and enhancement update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-php71-php-7.1.30-1.el7, rh-php71-php-bcmath-7.1.30-1.el7, rh-php71-php-cli-7.1.30-1.el7 +26
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4) rh-php71-php-7.1.30-1.el7, rh-php71-php-bcmath-7.1.30-1.el7, rh-php71-php-cli-7.1.30-1.el7 +26
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5) rh-php71-php-7.1.30-1.el7, rh-php71-php-bcmath-7.1.30-1.el7, rh-php71-php-cli-7.1.30-1.el7 +26
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) rh-php71-php-7.1.30-1.el7, rh-php71-php-bcmath-7.1.30-1.el7, rh-php71-php-cli-7.1.30-1.el7 +26
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-php71-php-7.1.30-1.el7, rh-php71-php-bcmath-7.1.30-1.el7, rh-php71-php-cli-7.1.30-1.el7 +26

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix yet: Fix deferred
Red Hat Software CollectionsAffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2020:1624
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2019:2519, RHSA-2019:3299
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4)Fixed RHSA-2019:2519
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5)Fixed RHSA-2019:2519, RHSA-2019:3299
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6)Fixed RHSA-2019:2519, RHSA-2019:3299
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7)Fixed RHSA-2019:3299
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2019:2519, RHSA-2019:3299

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-20783
  2. 2026-10-03 Alias added: GHSA-gx4f-r59p-mgpx

References

Exploit 1

Advisory 9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences