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CVE-2021-21704

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CVE-2021-21704

Published: Oct 4, 2021

Modified: Sep 17, 2024

PUBLISHED

CVSS v3.1

5.0

MEDIUM

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.

VendorProductVersions

PHP Group

PHP

affected
7.3.x - < 7.3.29
affected
7.4.x - < 7.4.21
affected
8.0.X - < 8.0.8

Weaknesses (CWE)

CWE-125
CWE-190

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

References

GLSA-202209-20
vendor-advisory
x_refsource_GENTOO

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