NULL Pointer Dereference Affecting php56-mssql package, versions <0:5.6.26-1.128.amzn1


Severity

Recommended
medium

Based on Amazon Linux security rating

    Threat Intelligence

    EPSS
    2.63% (91st percentile)

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  • Snyk ID SNYK-AMZN201803-PHP56MSSQL-1702136
  • published 27 Sep 2021
  • disclosed 17 Sep 2016

How to fix?

Upgrade Amazon-Linux:2018.03 php56-mssql to version 0:5.6.26-1.128.amzn1 or higher.
This issue was patched in ALAS-2016-753.

NVD Description

Note: Versions mentioned in the description apply only to the upstream php56-mssql package and not the php56-mssql package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

The php_wddx_push_element function in ext/wddx/wddx.c in PHP before 5.6.26 and 7.x before 7.0.11 allows remote attackers to cause a denial of service (invalid pointer access and out-of-bounds read) or possibly have unspecified other impact via an incorrect boolean element in a wddxPacket XML document, leading to mishandling in a wddx_deserialize call.