SB2018110901 - Multiple vulnerabilities in PHP
Published: November 9, 2018
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 secuirty vulnerabilities.
1) XXE attack (CVE-ID: N/A)
The vulnerability allows a remote unauthenticated attacker to conduct XXE-attack.
The vulnerability exists due to entities from the internal dtd are not resolved in element content when using xml_parse_into_struct. A remote attacker can trick the victim into opening an XML file that submits malicious input to gain access to arbitrary data or cause the service to crash.
2) Segmentation fault (CVE-ID: N/A)
The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.
The vulnerability exists due to memory limit error. A remote attacker can trigger segfault in shutdown function and cause the service to crash.
3) Heap-based buffer overflow (CVE-ID: N/A)
The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.
The vulnerability exists due to heap-based buffer overflow in zif_sodium_pad. A remote attacker can trigger memory corruption and cause the service to crash.
4) Heap-based buffer overflow (CVE-ID: N/A)
The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.
The vulnerability exists due to heap-based buffer overflow in zend_mm. A remote attacker can trigger memory corruption and cause xmlrpc_encode_request() crash.
Remediation
Install update from vendor's website.