← Back

CVE-2021-21704

nvd nist
Published: Oct 4, 2021Modified: Jun 17, 2026

JSON object

Loading...
5.9
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 2.2 / Impact: 3.6
Source: NVD

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.

Affected (4)

Php
1 product
Php
Netapp
1 product
Clustered Data Ontap
Configuration A
3 vulnerable
Vulnerable SoftwareAffected Versions
Php
Php
From 7.3.0 to 7.3.29
Php
From 7.4.0 to 7.4.21
Php
From 8.0.0 to 8.0.8
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Clustered Data Ontap
All versions

Related CWEs

CWE-125
Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
CWE-190
Integer Overflow or Wraparound
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
CWE-787
Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.

References (12)

Source: security@php.net
ExploitIssue TrackingPatchVendor Advisory
Source: security@php.net
ExploitIssue TrackingPatchVendor Advisory
Source: security@php.net
ExploitIssue TrackingPatchVendor Advisory
Source: security@php.net
ExploitIssue TrackingPatchVendor Advisory
Source: security@php.net
Third Party Advisory
Source: security@php.net
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitIssue TrackingPatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitIssue TrackingPatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitIssue TrackingPatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitIssue TrackingPatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

No history available yet.