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CVE-2021-21702

Null Dereference in SoapClient

Published: Feb 15, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-476
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
3.1%
Top 14.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

In PHP versions 7.3.x below 7.3.27, 7.4.x below 7.4.15 and 8.0.x below 8.0.2, when using SOAP extension to connect to a SOAP server, a malicious SOAP server could return malformed XML data as a response that would cause PHP to access a null pointer and thus cause a crash.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
Open in CVSS calculator →

Weaknesses

CWE-476

Affected Products

Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
Clustered Data ONTAPNetApp Inc.Hardware Firmware
Astra Linux Special Edition для «Эльбрус»ООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
PHPPHP Group
LibraryLibrary
OSS Libraries
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
netapp inc.commercialUSHardware Firmwareaka netapp
php grouposs-projectOSS Librariesaka php, pear
and 7 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Impact
Initial Access
View detailed technique mapping

References

https://www.debian.org/security/2021/dsa-4856
debian.org
https://nvd.nist.gov/vuln/detail/CVE-2021-21702
nvd.nist.gov
https://bugs.php.net/bug.php?id=80672
bugs.php.net
and 464 more references View all →

Timeline

Published
Feb 15, 2021
Last Updated
Nov 21, 2024

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