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Vulnerability of Apache HttpClient: information disclosure via java.net.URI Authority Component

Synthesis of the vulnerability 

An attacker can bypass access restrictions to data via java.net.URI Authority Component of Apache HttpClient, in order to obtain sensitive information.
Vulnerable software: Apache HttpClient, Debian, Notes by IBM, JBoss EAP by Red Hat.
Severity of this announce: 2/4.
Creation date: 08/10/2020.
Références of this computer vulnerability: CVE-2020-13956, DLA-2405-1, DSA-4772-1, KB0086419, RHSA-2021:0246-01, RHSA-2021:0247-01, RHSA-2021:0248-01, RHSA-2021:0250-01, VIGILANCE-VUL-33523.

Description of the vulnerability 

An attacker can bypass access restrictions to data via java.net.URI Authority Component of Apache HttpClient, in order to obtain sensitive information.
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This cybersecurity announce impacts software or systems such as Apache HttpClient, Debian, Notes by IBM, JBoss EAP by Red Hat.

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

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

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

Solutions for this threat 

Apache HttpClient: version 5.0.3.
The version 5.0.3 is fixed:
  http://hc.apache.org/downloads.cgi

Apache HttpClient: version 4.5.13.
The version 4.5.13 is fixed:
  http://hc.apache.org/downloads.cgi

Debian 10: new httpcomponents-client packages.
New packages are available:
  Debian 10: httpcomponents-client 4.5.7-1+deb10u1

Debian 9: new httpcomponents-client packages.
New packages are available:
  Debian 9: httpcomponents-client 4.5.2-2+deb9u1

HCL Notes: fixed versions for Multiple Components.
Fixed versions are indicated in information sources.

Red Hat JBoss EAP: version 7.3.5.
The version 7.3.5 is fixed:
  https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=appplatform&downloadType=securityPatches&version=7.3
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