CVE-2020-7068

Use of freed hash key in the phar_parse_zipfile function

At a glance

Severity: MEDIUM 4.8
EPSS: EPSS 1.66 % · percentile 77 (2026-10-27)
State: PUBLISHED
Published: 2020-09-09
Updated: 2024-09-17
Assigner: php
NVD status: Modified

Description

In PHP versions 7.2.x below 7.2.33, 7.3.x below 7.3.21 and 7.4.x below 7.4.9, while processing PHAR files using phar extension, phar_parse_zipfile could be tricked into accessing freed memory, which could lead to a crash or information disclosure.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	MEDIUM 4.8	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L	php
CVSS 3.1	MEDIUM 4.8	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L	NVD · security@php.net (Secondary)
CVSS 3.1	LOW 3.6	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:L	NVD · nvd@nist.gov (Primary)
CVSS 2.0	LOW 3.3	AV:L/AC:M/Au:N/C:P/I:N/A:P	NVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

CWE-416

European references

ENISA EUVD · EUVD-2020-28202
GCVE · GCVE-0-2020-7068

CERT-FR advisories

CERTFR-2021-AVI-571 — Multiples vulnérabilités dans Tenable · cert.ssi.gouv.fr
CERTFR-2020-AVI-488 — Multiples vulnérabilités dans PHP · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:php:php:*:*:*:*:*:*:*:* ≥ 7.2.0 < 7.2.33
cpe:2.3:a:php:php:*:*:*:*:*:*:*:* ≥ 7.3.0 < 7.3.21
cpe:2.3:a:php:php:*:*:*:*:*:*:*:* ≥ 7.4.0 < 7.4.9
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:a:tenable:tenable.sc:*:*:*:*:*:*:*:* < 5.19.0

Affected products

Product	Versions
PHP Group · PHP	affected 7.3.x < 7.3.21 ; affected 7.4.x < 7.4.9 ; affected 7.2.x < 7.2.33

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD