CVE-2021-21704

Multiple vulnerabilities in Firebird client extension

En bref

Sévérité
MEDIUM 5.0
EPSS
EPSS 1.80 % · centile 78 (2026-10-27)
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
php
Statut NVD
Modified

Description

In PHP versions 7.3.x below 7.3.29, 7.4.x below 7.4.21 and 8.0.x below 8.0.8, when using Firebird PDO driver extension, a malicious database server could cause crashes in various database functions, such as getAttribute(), execute(), fetch() and others by returning invalid response data that is not parsed correctly by the driver. This can result in crashes, denial of service or potentially memory corruption.

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 5.0CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:Lphp
CVSS 3.1MEDIUM 5.0CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:LNVD · security@php.net (Secondary)
CVSS 3.1MEDIUM 5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)
CVSS 2.0MEDIUM 4.3AV:N/AC:M/Au:N/C:N/I:N/A:PNVD · nvd@nist.gov (Primary)

Faiblesses (CWE)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
PHP Group · PHPaffected 7.3.x < 7.3.29 ; affected 7.4.x < 7.4.21 ; affected 8.0.X < 8.0.8

Références

Sources

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