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nvd[email protected]NVD:CVE-2021-21708
HistoryFeb 27, 2022 - 8:15 a.m.

CVE-2021-21708

2022-02-2708:15:06
CWE-416
[email protected]
web.nvd.nist.gov
7
php version
vulnerability
memory allocation
rce
filter_validate_float
min/max limits

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.003

Percentile

71.2%

JSON

In PHP versions 7.4.x below 7.4.28, 8.0.x below 8.0.16, and 8.1.x below 8.1.3, when using filter functions with FILTER_VALIDATE_FLOAT filter and min/max limits, if the filter fails, there is a possibility to trigger use of allocated memory after free, which can result it crashes, and potentially in overwrite of other memory chunks and RCE. This issue affects: code that uses FILTER_VALIDATE_FLOAT with min/max limits.

Affected configurations

Nvd
Node
phpphpRange7.4.0–7.4.28
OR
phpphpRange8.0.0–8.0.16
OR
phpphpRange8.1.0–8.1.3
VendorProductVersionCPE
phpphp*cpe:2.3:a:php:php:*:*:*:*:*:*:*:*

Related

openvas 13
osv 12
slackware 1
altlinux 4
ubuntu 1
cve 1
veracode 1
f5 1
fedora 2
cbl_mariner 1
prion 1
nessus 29
redhatcve 1
cvelist 1
debiancve 1
ubuntucve 1
alpinelinux 1
suse 1
oraclelinux 3
redhat 3
rocky 3
debian 1
almalinux 3
ibm 1
gentoo 1
redos 1
oracle 2
openvas
openvas
Slackware: Security Advisory (SSA:2022-048-02)
2022-04-21 00:00:00
Ubuntu: Security Advisory (USN-5303-1)
2022-03-01 00:00:00
PHP < 7.4.28, 8.0.x < 8.0.16, 8.1.x < 8.1.3 Security Update (Feb 2022) - Linux
2022-02-18 00:00:00
osv
osv
CVE-2021-21708
2022-02-27 08:15:06
php8-8.1.3-1.1 on GA media
2024-06-15 00:00:00
BIT-php-2021-21708
2024-03-06 11:04:32
slackware
slackware
[slackware-security] php
2022-02-18 05:43:10
altlinux
altlinux
Security fix for the ALT Linux 10 package php8.1 version 8.1.3-alt1
2022-02-28 00:00:00
Security fix for the ALT Linux 10 package php7 version 7.4.28-alt1
2022-03-01 00:00:00
Security fix for the ALT Linux 10 package php8.0 version 8.0.16-alt1
2022-02-28 00:00:00
ubuntu
ubuntu
PHP vulnerability
2022-02-28 00:00:00
cve
cve
CVE-2021-21708
2022-02-27 08:15:06
veracode
veracode
Denial Of Service (DoS)
2022-02-18 16:08:38
f5
f5
K14492558 : PHP vulnerability CVE-2021-21708
2022-03-23 00:00:00
fedora
fedora
[SECURITY] Fedora 34 Update: php-7.4.28-1.fc34
2022-02-23 16:15:14
[SECURITY] Fedora 35 Update: php-8.0.16-1.fc35
2022-02-22 19:12:07
cbl_mariner
cbl_mariner
CVE-2021-21708 affecting package php 7.4.14-3
2024-09-28 16:03:15
prion
prion
Memory corruption
2022-02-27 08:15:00
nessus
nessus
Ubuntu 20.04 LTS : PHP vulnerability (USN-5303-1)
2022-02-28 00:00:00
SUSE SLES15 Security Update : php7 (SUSE-SU-2022:0847-1)
2022-03-16 00:00:00
Slackware Linux 15.0 / current php Multiple Vulnerabilities (SSA:2022-048-02)
2022-02-18 00:00:00
redhatcve
redhatcve
CVE-2021-21708
2022-02-17 21:21:43
cvelist
cvelist
CVE-2021-21708 UAF due to php_filter_float() failing
2022-02-27 08:00:12
debiancve
debiancve
CVE-2021-21708
2022-02-27 08:15:06
ubuntucve
ubuntucve
CVE-2021-21708
2021-12-31 00:00:00
alpinelinux
alpinelinux
CVE-2021-21708
2022-02-27 08:15:06
suse
suse
Security update for php7 (important)
2022-03-15 00:00:00
oraclelinux
oraclelinux
php:8.0 security, bug fix, and enhancement update
2022-11-15 00:00:00
php security, bug fix, and enhancement update
2022-11-22 00:00:00
php:7.4 security, bug fix, and enhancement update
2022-11-15 00:00:00
redhat
redhat
(RHSA-2022:8197) Moderate: php security, bug fix, and enhancement update
2022-11-15 06:18:21
(RHSA-2022:7624) Moderate: php:8.0 security, bug fix, and enhancement update
2022-11-08 06:24:57
(RHSA-2022:7628) Moderate: php:7.4 security, bug fix, and enhancement update
2022-11-08 06:25:00
rocky
rocky
php security, bug fix, and enhancement update
2022-11-15 06:18:21
php:8.0 security, bug fix, and enhancement update
2022-11-08 06:24:57
php:7.4 security, bug fix, and enhancement update
2022-11-08 06:25:00
debian
debian
[SECURITY] [DSA 5082-1] php7.4 security update
2022-02-18 19:09:20
almalinux
almalinux
Moderate: php:8.0 security, bug fix, and enhancement update
2022-11-08 00:00:00
Moderate: php security, bug fix, and enhancement update
2022-11-15 00:00:00
Moderate: php:7.4 security, bug fix, and enhancement update
2022-11-08 00:00:00
ibm
ibm
Security Bulletin: Vulnerabilities in PHP may affect IBM Spectrum Sentinel Anomaly Scan Engine (CVE-2021-21703, CVE-2021-21708, CVE-2021-21707, CVE-2022-31629, CVE-2022-31628)
2022-12-16 17:01:05
gentoo
gentoo
PHP: Multiple Vulnerabilities
2022-09-29 00:00:00
redos
redos
ROS-20220826-01
2022-08-26 00:00:00
oracle
oracle
Oracle Critical Patch Update Advisory - January 2023
2023-01-17 00:00:00
Oracle Critical Patch Update Advisory - October 2022
2022-10-18 00:00:00

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.003

Percentile

71.2%

JSON
Related for NVD:CVE-2021-21708
openvas13osv12slackware1altlinux4ubuntu1cve1veracode1f51fedora2cbl_mariner1prion1nessus29redhatcve1cvelist1debiancve1ubuntucve1alpinelinux1suse1oraclelinux3redhat3rocky3debian1almalinux3ibm1gentoo1redos1oracle2