CVE-2018-19395: Null Pointer Dereference
First published: Tue Nov 20 2018(Updated: )
ext/standard/var.c in PHP 5.x through 7.1.24 on Windows allows attackers to cause a denial of service (NULL pointer dereference and application crash) because com and com_safearray_proxy return NULL in com_properties_get in ext/com_dotnet/com_handlers.c, as demonstrated by a serialize call on COM("WScript.Shell").
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| PHP | >=5.0.0<=7.1.24 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2018-19395?
CVE-2018-19395 is a medium severity vulnerability that can lead to denial of service due to NULL pointer dereference.
How do I fix CVE-2018-19395?
To fix CVE-2018-19395, upgrade PHP to version 7.2 or later, as versions prior to 7.1.24 are affected.
Which versions of PHP are affected by CVE-2018-19395?
CVE-2018-19395 affects PHP versions from 5.0.0 up to and including 7.1.24.
What types of attacks can CVE-2018-19395 facilitate?
CVE-2018-19395 can facilitate denial of service attacks by causing an application crash.
Is CVE-2018-19395 specific to any operating system?
Yes, CVE-2018-19395 specifically affects PHP running on Windows.
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