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[email protected]CVE-2021-21704

HistoryOct 04, 2021 - 4:15 a.m.

CVE-2021-21704

2021-10-0404:15:07

CWE-787

CWE-125

CWE-190

[email protected]

web.nvd.nist.gov

505

cve-2021-21704

php

firebird pdo

database server

denial of service

memory corruption

nvd

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5.8 Medium

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

73.1%

JSON

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 configurations

NVD

Node

phpphpRange7.3.0–7.3.29

phpphpRange7.4.0–7.4.21

phpphpRange8.0.0–8.0.8

Node

netappclustered_data_ontapMatch-

CPENameOperatorVersion
php:phpphplt7.3.29
php:phpphplt7.4.21
php:phpphplt8.0.8

CPE	Name	Operator	Version
php:php	php	lt	7.3.29
php:php	php	lt	7.4.21
php:php	php	lt	8.0.8

CNA Affected

[
  {
    "product": "PHP",
    "vendor": "PHP Group",
    "versions": [
      {
        "lessThan": "7.3.29",
        "status": "affected",
        "version": "7.3.x",
        "versionType": "custom"
      },
      {
        "lessThan": "7.4.21",
        "status": "affected",
        "version": "7.4.x",
        "versionType": "custom"
      },
      {
        "lessThan": "8.0.8",
        "status": "affected",
        "version": "8.0.X",
        "versionType": "custom"
      }
    ]
  }
]