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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2021-21708
HistoryFeb 27, 2022 - 8:15 a.m.

CVE-2021-21708

2022-02-2708:15:06
Debian Security Bug Tracker
security-tracker.debian.org
63
php
filter functions
memory corruption

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.

OSVersionArchitecturePackageVersionFilename
Debian11allphp7.4< 7.4.28-1+deb11u1php7.4_7.4.28-1+deb11u1_all.deb

Related

veracode 1
f5 1
nvd 1
fedora 2
cbl_mariner 1
openvas 13
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osv 12
altlinux 4
cve 1
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prion 1
nessus 29
redhatcve 1
cvelist 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
veracode
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Denial Of Service (DoS)
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K14492558 : PHP vulnerability CVE-2021-21708
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2022-02-27 08:15:06
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[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
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CVE-2021-21708 affecting package php 7.4.14-3
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Slackware: Security Advisory (SSA:2022-048-02)
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Security fix for the ALT Linux 10 package php8.1 version 8.1.3-alt1
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Security fix for the ALT Linux 10 package php8.0 version 8.0.16-alt1
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cve
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CVE-2021-21708
2022-02-27 08:15:06
ubuntu
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PHP vulnerability
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Ubuntu 20.04 LTS : PHP vulnerability (USN-5303-1)
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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)
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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 DEBIANCVE:CVE-2021-21708
veracode1f51nvd1fedora2cbl_mariner1openvas13slackware1osv12altlinux4cve1ubuntu1prion1nessus29redhatcve1cvelist1ubuntucve1alpinelinux1suse1oraclelinux3redhat3rocky3debian1almalinux3ibm1gentoo1redos1oracle2