Multiple vulnerabilities in PHP

Published: 2018-11-09 09:41:23
Severity Low
Patch available YES
Number of vulnerabilities 4
CVE ID N/A
CVSSv3 6.2 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H/E:U/RL:O/RC:C]
6.5 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
6.5 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
4.6 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CWE ID CWE-611
CWE-119
CWE-122
Exploitation vector Network
Public exploit Not available
Vulnerable software PHP
Vulnerable software versions PHP 7.1.23
PHP 7.1.22
PHP 7.1.21
Show more
Vendor URL PHP Group

Security Advisory

1) XXE attack

Description

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.

Remediation

The vulnerability has been fixed in the versions 7.1.24, 7.2.12.

External links

https://bugs.php.net/bug.php?id=76948

2) Segmentation fault

Description

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.

Remediation

Update to version 7.2.12.

External links

https://bugs.php.net/bug.php?id=76846

3) Heap-based buffer overflow

Description

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.

Remediation

Update to version 7.2.12.

External links

https://bugs.php.net/bug.php?id=77008

4) Heap-based buffer overflow

Description

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

Update to version 7.2.12.

External links

https://bugs.php.net/bug.php?id=75282

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