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Vulnerability of RSYSLOG: out-of-bounds memory reading via pmdb2diag.c

Synthesis of the vulnerability

An attacker can force a read at an invalid address via pmdb2diag.c of RSYSLOG, in order to trigger a denial of service, or to obtain sensitive information.
Severity of this announce: 2/4.
Creation date: 01/10/2019.
Références of this computer vulnerability: CVE-2019-17040, FEDORA-2019-1fb95ae48d, FEDORA-2019-ea7d5876a4, VIGILANCE-VUL-30487.

Description of the vulnerability

An attacker can force a read at an invalid address via pmdb2diag.c of RSYSLOG, in order to trigger a denial of service, or to obtain sensitive information.
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This cybersecurity announce impacts software or systems such as Fedora, RSYSLOG.

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

RSYSLOG: version 8.1910.0.
The version 8.1910.0 is fixed:
  https://github.com/rsyslog/rsyslog/

RSYSLOG: patch for pmdb2diag.c.
A patch is indicated in information sources.

Fedora: new rsyslog packages.
New packages are available:
  Fedora 30: rsyslog 8.1911.0-1.fc30
  Fedora 31: rsyslog 8.1911.0-1.fc31
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