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Vulnerability of Netty: information disclosure via Http2HeaderFrame Request Smuggling

Synthesis of the vulnerability 

An attacker can bypass access restrictions to data via Http2HeaderFrame Request Smuggling of Netty, in order to obtain sensitive information.
Impacted products: Debian.
Severity of this bulletin: 2/4.
Creation date: 06/04/2021.
Références of this threat: CVE-2021-21409, DSA-4885-1, VIGILANCE-VUL-35007.

Description of the vulnerability 

An attacker can bypass access restrictions to data via Http2HeaderFrame Request ...
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This computer threat bulletin impacts software or systems such as Debian.

Our Vigil@nce team determined that the severity of this security threat is medium.

The trust level is of type confirmed by the editor, with an origin of intranet client.

An attacker with a expert ability can exploit this computer vulnerability alert.

Solutions for this threat 

This vulnerability fix will be public soon.
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