Double Free Affecting php56-mssql package, versions <0:5.6.24-1.126.amzn1


Severity

Recommended
medium

Based on Amazon Linux security rating

    Threat Intelligence

    EPSS
    1.97% (89th percentile)

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  • Snyk ID SNYK-AMZN201803-PHP56MSSQL-1700509
  • published 27 Sep 2021
  • disclosed 7 Aug 2016

How to fix?

Upgrade Amazon-Linux:2018.03 php56-mssql to version 0:5.6.24-1.126.amzn1 or higher.
This issue was patched in ALAS-2016-728.

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.

Double free vulnerability in the php_wddx_process_data function in wddx.c in the WDDX extension in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via crafted XML data that is mishandled in a wddx_deserialize call.

CVSS Scores

version 3.1
Expand this section

NVD

9.8 critical
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High