Description
In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, when a SOAP server has a typemap configured, the decoding process contains a mistake which checks the wrong variable in case of missing value element. This leads to dereferences a NULL pointer, causing a segmentation fault. This allows a remote unauthenticated attacker to crash the PHP SOAP server process, resulting in denial of service.
Problem types
CWE-476 NULL pointer dereference
Product status
8.2.* (semver) before 8.2.31
8.3.* (semver) before 8.3.31
8.4.* (semver) before 8.4.21
8.5.* (semver) before 8.5.6
Credits
Ilia Alshanetsky
Ilija Tovilo
References
github.com/...hp-src/security/advisories/GHSA-hmxp-6pc4-f3vv