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Vulnerability of tcpflow: out-of-bounds memory reading via setbit

Synthesis of the vulnerability 

An attacker can force a read at an invalid address via setbit() of tcpflow, in order to trigger a denial of service, or to obtain sensitive information.
Vulnerable software: Fedora, Ubuntu.
Severity of this announce: 2/4.
Creation date: 22/03/2019.
Références of this computer vulnerability: CVE-2018-18409, FEDORA-2019-2c020ccbd5, FEDORA-2019-8cdd669aca, USN-3955-1, VIGILANCE-VUL-28807.

Description of the vulnerability 

An attacker can force a read at an invalid address via setbit() of tcpflow, in order to trigger a denial of service, or to obtain sensitive information.
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This computer vulnerability note impacts software or systems such as Fedora, Ubuntu.

Our Vigil@nce team determined that the severity of this computer vulnerability announce is medium.

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

An attacker with a expert ability can exploit this cybersecurity announce.

Solutions for this threat 

Fedora: new tcpflow packages.
New packages are available:
  Fedora 28: tcpflow 1.5.0-4.fc28
  Fedora 29: tcpflow 1.5.0-4.fc29

Ubuntu: new tcpflow packages.
New packages are available:
  Ubuntu 18.10: tcpflow 1.4.5+repack1-4ubuntu0.18.10.1
  Ubuntu 18.04 LTS: tcpflow 1.4.5+repack1-4ubuntu0.18.04.1
  Ubuntu 16.04 LTS: tcpflow 1.4.5+repack1-1ubuntu0.1
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