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CVE-2017-11143

7.5 · HIGH

In PHP before 5.6.31, an invalid free in the WDDX deserialization of boolean parameters could be used by attackers able to inject XML for deserialization to crash the PHP interpreter, related to an…

Published Jul 10, 2017CWE-416EPSS 6.85%

Overview

CVE-2017-11143 is a high-severity vulnerability. It was published on July 10, 2017 and has a CVSS 3.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In PHP before 5.6.31, an invalid free in the WDDX deserialization of boolean parameters could be used by attackers able to inject XML for deserialization to crash the PHP interpreter, related to an invalid free for an empty boolean element in ext/wddx/wddx.c.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refopenwall.com/lists/oss-security/2017/07/10/6Refphp.net/ChangeLog-5.phpRefwww.securityfocus.com/bid/99553Refaccess.redhat.com/errata/RHSA-2018:1296Refbugs.php.net/bug.php?id=74145Refgit.php.net/?p=php-src.git%3Ba=commit%3Bh=2aae60461c2ff7b7fbcdd194c789ac841d0747d7Refsecurity.netapp.com/advisory/ntap-20180112-0001/Refwww.debian.org/security/2018/dsa-4081Refwww.tenable.com/security/tns-2017-12Refopenwall.com/lists/oss-security/2017/07/10/6

How CyberStrike helps

Frequently asked questions

What is CVE-2017-11143?

CVE-2017-11143 is a high-severity vulnerability. It was published on July 10, 2017 and has a CVSS 3.0 base score of 7.5 (HIGH).

How severe is CVE-2017-11143?

This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2017-11143?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2017-11143?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-11143 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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