CVE-2023-3824

Buffer overflow and overread in phar_dir_read()

At a glance

Severity: CRITICAL 9.4
EPSS: EPSS 21.79 % · percentile 98 (2026-10-27)
State: PUBLISHED
Published: 2023-08-11
Updated: 2025-02-13
Assigner: php
NVD status: Modified

Description

In PHP version 8.0.* before 8.0.30, 8.1.* before 8.1.22, and 8.2.* before 8.2.8, when loading phar file, while reading PHAR directory entries, insufficient length checking may lead to a stack buffer overflow, leading potentially to memory corruption or RCE.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	CRITICAL 9.4	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L	php
CVSS 3.1	CRITICAL 9.4	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L	NVD · security@php.net (Secondary)
CVSS 3.1	CRITICAL 9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	NVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

CWE-119

European references

ENISA EUVD · EUVD-2023-44452
GCVE · GCVE-0-2023-3824

CERT-FR advisories

CERTFR-2024-AVI-0866 — Multiples vulnérabilités dans les produits Juniper Networks · cert.ssi.gouv.fr
CERTFR-2023-AVI-0756 — Multiples vulnérabilités dans TrendMicro Deep Discovery Inspector · cert.ssi.gouv.fr
CERTFR-2023-AVI-0669 — Multiples vulnérabilités dans PHP · cert.ssi.gouv.fr
CERTFR-2023-AVI-0628 — Multiples vulnérabilités dans PHP · cert.ssi.gouv.fr
CERTFR-2023-AVI-0621 — Multiples vulnérabilités dans PHP · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:php:php:*:*:*:*:*:*:*:* ≥ 8.0.0 < 8.0.30
cpe:2.3:a:php:php:*:*:*:*:*:*:*:* ≥ 8.1.0 < 8.1.22
cpe:2.3:a:php:php:*:*:*:*:*:*:*:* ≥ 8.2.0 < 8.2.9
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

Affected products

Product	Versions
PHP Group · PHP	affected 8.0.* < 8.0.30 ; affected 8.1.* < 8.1.22 ; affected 8.2.* < 8.2.8

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