CVE-2019-11046

Buffer underflow in bc_shift_addsub

En bref

Sévérité: LOW 3.7
EPSS: EPSS 4.12 % · centile 91 (2026-10-27)
État: PUBLISHED
Publiée: 2019-12-23
Mise à jour: 2024-09-16
Attribuée par: php
Statut NVD: Modified

Description

In PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0, PHP bcmath extension functions on some systems, including Windows, can be tricked into reading beyond the allocated space by supplying it with string containing characters that are identified as numeric by the OS but aren't ASCII numbers. This can read to disclosure of the content of some memory locations.

Scores

Version	Score	Vecteur	Évalué par
CVSS 3.1	LOW 3.7	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N	php
CVSS 3.1	LOW 3.7	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N	NVD · security@php.net (Secondary)
CVSS 3.1	MEDIUM 5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N	NVD · nvd@nist.gov (Primary)
CVSS 2.0	MEDIUM 5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N	NVD · nvd@nist.gov (Primary)

Faiblesses (CWE)

CWE-125

Références européennes

ENISA EUVD · EUVD-2019-2754
GCVE · GCVE-0-2019-11046

Avis du CERT-FR

CERTFR-2021-AVI-571 — Multiples vulnérabilités dans Tenable · cert.ssi.gouv.fr
CERTFR-2019-AVI-641 — Multiples vulnérabilités dans PHP · cert.ssi.gouv.fr

Configurations affectées (CPE NVD)

cpe:2.3:a:php:php:*:*:*:*:*:*:*:* ≥ 7.2.0 ≤ 7.2.26
cpe:2.3:a:php:php:*:*:*:*:*:*:*:* ≥ 7.3.0 ≤ 7.3.13
cpe:2.3:a:php:php:7.4.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
cpe:2.3:a:tenable:security_center:*:*:*:*:*:*:*:* < 5.19.0

Produits affectés

Produit	Versions
PHP Group · PHP	affected 7.2.x < 7.2.26 ; affected 7.3.x < 7.3.13 ; affected 7.4.x < 7.4.1

Références

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