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Synthesis of the vulnerability 
An attacker can force a read at an invalid address via nlist.c of libbsd, in order to trigger a denial of service, or to obtain sensitive information.
 Vulnerable systems: Debian, openSUSE Leap, Ubuntu.
Severity of this threat: 2/4.
Creation date: 21/01/2020.
Références of this weakness: CVE-2019-20367, DLA-2566-1, openSUSE-SU-2020:0679-1, USN-4243-1, VIGILANCE-VUL-31376.
Description of the vulnerability 
An attacker can force a read at an invalid address via nlist.c of libbsd, in order to trigger a denial of service, or to obtain sensitive information.
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This vulnerability bulletin impacts software or systems such as Debian, openSUSE Leap, Ubuntu.
Our Vigil@nce team determined that the severity of this security note 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 cybersecurity note.
Solutions for this threat 
Debian 9: new libbsd packages.
New packages are available:
Debian 9: libbsd 0.8.3-1+deb9u1
openSUSE Leap 15.1: new libbsd packages.
New packages are available:
openSUSE Leap 15.1: libbsd 0.8.7-lp151.3.3.1
Ubuntu: new libbsd packages.
New packages are available:
Ubuntu 19.04: libbsd0 0.9.1-2ubuntu0.1
Ubuntu 18.04 LTS: libbsd0 0.8.7-1ubuntu0.1
Ubuntu 16.04 LTS: libbsd0 0.8.2-1ubuntu0.1
Ubuntu 14.04 ESM: libbsd0 0.6.0-2ubuntu1+esm1
Ubuntu 12.04 ESM: libbsd0 0.3.0-2ubuntu0.1
Wind River Linux: version 10.17.41.20.
The version 10.17.41.20 is fixed:
https://support2.windriver.com/
Wind River Linux: version 10.18.44.15.
The version 10.18.44.15 is fixed:
https://support2.windriver.com/
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Vigil@nce provides cybersecurity announces. The Vigil@nce vulnerability database contains several thousand vulnerabilities.
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