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Vulnerability of RubyGem Puma: read-write access via Transfer-encoding Header

Synthesis of the vulnerability 

An attacker can bypass access restrictions via Transfer-encoding Header of RubyGem Puma, in order to read or alter data.
Vulnerable systems: openSUSE Leap.
Severity of this threat: 2/4.
Creation date: 20/07/2020.
Références of this weakness: CVE-2020-11076, openSUSE-SU-2020:0990-1, openSUSE-SU-2020:1001-1, VIGILANCE-VUL-32876.

Description of the vulnerability 

An attacker can bypass access restrictions via Transfer-encoding Header of RubyG...
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This computer vulnerability impacts software or systems such as openSUSE Leap.

Our Vigil@nce team determined that the severity of this weakness bulletin is medium.

The trust level is of type confirmed by the editor, with an origin of internet server.

An attacker with a expert ability can exploit this weakness.

Solutions for this threat 

This vulnerability workaround will be public soon.
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