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Fixes a bug in Zend Framework's Stream HTTP Wrapper

High
Flyingmana published GHSA-m496-x567-f98c Apr 20, 2021

Package

No package listed

Affected versions

v20.0.8 v19.4.12

Patched versions

v20.0.9 v19.4.13

Description

Impact

CVE-2021-3007: Backport of Zend_Http_Response_Stream, added certain type checking as a way to prevent exploitation. https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3007

This vulnerability is caused by the unsecured deserialization of an object. In versions higher than Zend Framework 3.0.0, the attacker abuses the Zend3 feature that loads classes from objects in order to upload and execute malicious code in the server. The code can be uploaded using the “callback” parameter, which in this case inserts a malicious code instead of the “callbackOptions” array.

Patches

Has the problem been patched? What versions should users upgrade to?
v20.0.9 v19.4.13

Severity

High

CVE ID

CVE-2021-21426

Weaknesses

No CWEs