Vulnerabilities > CVE-2021-21702 - NULL Pointer Dereference vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
PARTIAL Summary
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.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- https://bugs.php.net/bug.php?id=80672
- https://www.debian.org/security/2021/dsa-4856
- https://security.netapp.com/advisory/ntap-20210312-0005/
- https://security.gentoo.org/glsa/202105-23
- https://lists.debian.org/debian-lts-announce/2021/07/msg00008.html
- https://www.tenable.com/security/tns-2021-14
- https://www.oracle.com/security-alerts/cpuoct2021.html