CVE-2021-21702
Null Dereference in SoapClient
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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.
En PHP versiones 7.3.x por debajo de 7.3.27, 7.4.x por debajo de 7.4.15 y 8.0.x por debajo de 8.0.2, cuando se usa la extensión SOAP para conectarse a un servidor SOAP, un servidor SOAP malicioso podría devolver datos XML malformados como respuesta eso haría que PHP acceda a un puntero null y, por tanto, causaría un bloqueo
A NULL pointer dereference issue is in the SOAP extension of PHP. More specifically, the flaw occurs in the SoapClient when parsing a WSDL document due to improper checking of a child node name. A malicious or compromised server replies with a crafted WSDL document, leading to a denial of service of the SoapClient accessing said document. The highest threat from this vulnerability is to system availability.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2021-01-04 CVE Reserved
- 2021-02-15 CVE Published
- 2024-03-06 EPSS Updated
- 2024-09-16 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-476: NULL Pointer Dereference
CAPEC
References (9)
| URL | Tag | Source |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2021/07/msg00008.html | Mailing List |
|
| https://security.netapp.com/advisory/ntap-20210312-0005 | Third Party Advisory |
|
| https://www.tenable.com/security/tns-2021-14 | Third Party Advisory |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.oracle.com/security-alerts/cpuoct2021.html | 2021-12-10 |
| URL | Date | SRC |
|---|---|---|
| https://bugs.php.net/bug.php?id=80672 | 2021-12-10 | |
| https://security.gentoo.org/glsa/202105-23 | 2021-12-10 | |
| https://www.debian.org/security/2021/dsa-4856 | 2021-12-10 | |
| https://access.redhat.com/security/cve/CVE-2021-21702 | 2021-11-09 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1925272 | 2021-11-09 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Php Search vendor "Php" | Php Search vendor "Php" for product "Php" | >= 7.3.0 < 7.3.27 Search vendor "Php" for product "Php" and version " >= 7.3.0 < 7.3.27" | - |
Affected
| ||||||
| Php Search vendor "Php" | Php Search vendor "Php" for product "Php" | >= 7.4.0 < 7.4.15 Search vendor "Php" for product "Php" and version " >= 7.4.0 < 7.4.15" | - |
Affected
| ||||||
| Php Search vendor "Php" | Php Search vendor "Php" for product "Php" | >= 8.0.0 < 8.0.2 Search vendor "Php" for product "Php" and version " >= 8.0.0 < 8.0.2" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
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| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0" | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Clustered Data Ontap Search vendor "Netapp" for product "Clustered Data Ontap" | - | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Communications Diameter Signaling Router Search vendor "Oracle" for product "Communications Diameter Signaling Router" | >= 8.0.0 <= 8.5.0 Search vendor "Oracle" for product "Communications Diameter Signaling Router" and version " >= 8.0.0 <= 8.5.0" | - |
Affected
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