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Vulnerability of systemd: memory leak via button_open

Synthesis of the vulnerability 

An attacker can create a memory leak via button_open of systemd, in order to trigger a denial of service.
Impacted software: openSUSE Leap, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this computer vulnerability: 1/4.
Creation date: 06/02/2020.
Références of this announce: CVE-2019-20386, openSUSE-SU-2020:0208-1, RHSA-2020:4007-01, SUSE-SU-2020:0335-1, SUSE-SU-2020:1828-1, SUSE-SU-2020:1842-1, USN-4269-1, VIGILANCE-VUL-31528.

Description of the vulnerability 

An attacker can create a memory leak via button_open of systemd, in order to trigger a denial of service.
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This threat bulletin impacts software or systems such as openSUSE Leap, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this computer threat bulletin is low.

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

An attacker with a expert ability can exploit this computer threat.

Solutions for this threat 

openSUSE Leap 15.1: new systemd packages.
New packages are available:
  openSUSE Leap 15.1: systemd 234-lp151.26.7.1

RHEL 7.8: new systemd packages.
New packages are available:
  RHEL 7.0-7.8: systemd 219-78.el7

SUSE LE 12 SP4: new systemd packages.
New packages are available:
  SUSE LE 12 SP4: systemd 228-150.86.3

SUSE LE 12 SP5: new systemd packages.
New packages are available:
  SUSE LE 12 SP5: systemd 228-157.12.5

SUSE LE 15: new systemd packages.
New packages are available:
  SUSE LE 15 RTM: systemd 234-24.39.1
  SUSE LE 15 SP1: systemd 234-24.39.1

Ubuntu: new systemd packages.
New packages are available:
  Ubuntu 19.10: systemd 242-7ubuntu3.6
  Ubuntu 18.04 LTS: systemd 237-3ubuntu10.38
  Ubuntu 16.04 LTS: systemd 229-4ubuntu21.27

Wind River Linux: version 10.17.41.20.
The version 10.17.41.20 is fixed:
  https://support2.windriver.com/
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