libsystemd.so is vulnerable to denial of service. A lack of memory boundary checks causes the stack to clash with another memory region, allowing a remote attacker to abuse the vulnerability to crash the process, or possibly execute arbitrary OS commands with journald privileges.
packetstormsecurity.com/files/152841/System-Down-A-systemd-journald-Exploit.html
seclists.org/fulldisclosure/2019/May/21
www.openwall.com/lists/oss-security/2019/05/10/4
www.openwall.com/lists/oss-security/2021/07/20/2
www.securityfocus.com/bid/106525
access.redhat.com/errata/RHBA-2019:0327
access.redhat.com/errata/RHSA-2019:0049
access.redhat.com/errata/RHSA-2019:0204
access.redhat.com/errata/RHSA-2019:0271
access.redhat.com/errata/RHSA-2019:0342
access.redhat.com/errata/RHSA-2019:0361
access.redhat.com/errata/RHSA-2019:2402
access.redhat.com/security/cve/CVE-2018-16865
bugzilla.redhat.com/show_bug.cgi?id=1653861
bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16865
lists.debian.org/debian-lts-announce/2019/01/msg00016.html
seclists.org/bugtraq/2019/May/25
security.gentoo.org/glsa/201903-07
security.netapp.com/advisory/ntap-20190117-0001/
usn.ubuntu.com/3855-1/
www.debian.org/security/2019/dsa-4367
www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
www.qualys.com/2019/01/09/system-down/system-down.txt