Updated systemd packages has been released for Debian GNU/Linux 9

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Debian Security Advisory DSA-4367-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
January 13, 2019 https://www.debian.org/security/faq
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Package : systemd
CVE ID : CVE-2018-16864 CVE-2018-16865 CVE-2018-16866
Debian Bug : 918841 918848

The Qualys Research Labs discovered multiple vulnerabilities in
systemd-journald. Two memory corruption flaws, via attacker-controlled
alloca()s (CVE-2018-16864, CVE-2018-16865) and an out-of-bounds read flaw
leading to an information leak (CVE-2018-16866), could allow an attacker to
cause a denial of service or the execution of arbitrary code.

Further details in the Qualys Security Advisory at
https://www.qualys.com/2019/01/09/system-down/system-down.txt

For the stable distribution (stretch), these problems have been fixed in
version 232-25+deb9u7.

We recommend that you upgrade your systemd packages.

For the detailed security status of systemd please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/systemd

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

  Systemd Security Update for Debian 9