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Fencer Vulns
low 3.3

CVE-2019-3815 json

A memory leak was discovered in the backport of fixes for CVE-2018-16864 in Red Hat Enterprise Linux.

published 2019-01-28 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-13438

cvss
3.3
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 34%
public exploits
0
none known

Summary

A memory leak was discovered in the backport of fixes for CVE-2018-16864 in Red Hat Enterprise Linux. Function dispatch_message_real() in journald-server.c does not free the memory allocated by set_iovec_field_free() to store the `_CMDLINE=` entry. A local attacker may use this flaw to make systemd-journald crash. This issue only affects versions shipped with Red Hat Enterprise since v219-62.2.

Patch / fix

  • systemd RHEL 7 219-62.el7_6.3
  • libgudev1 RHEL 7 219-62.el7_6.3
  • systemd-libs RHEL 7 219-62.el7_6.3
  • systemd-sysv RHEL 7 219-62.el7_6.3
  • systemd-python RHEL 7 219-62.el7_6.3
  • systemd-networkd RHEL 7 219-62.el7_6.3
  • systemd-resolved RHEL 7 219-62.el7_6.3
  • systemd-journal-gateway RHEL 7 219-62.el7_6.3

red hat advisories RHSA-2019:0201

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-3815 updated cvss 3.3

systemd: memory leak in journald-server.c introduced by fix for CVE-2018-16864

  • Red Hat Enterprise Linux Client (v. 7) systemd 219-62.el7_6.3, libgudev1 219-62.el7_6.3, systemd-libs 219-62.el7_6.3, systemd-sysv 219-62.el7_6.3, systemd-python 219-62.el7_6.3 Red Hat Enterprise Linux Client Optional (v. 7) systemd-networkd 219-62.el7_6.3, systemd-resolved 219-62.el7_6.3, systemd-journal-gateway 219-62.el7_6.3 Red Hat Enterprise Linux ComputeNode (v. 7) systemd 219-62.el7_6.3, libgudev1 219-62.el7_6.3, systemd-libs 219-62.el7_6.3, systemd-sysv 219-62.el7_6.3, systemd-python 219-62.el7_6.3 Red Hat Enterprise Linux ComputeNode Optional (v. 7) systemd-networkd 219-62.el7_6.3, systemd-resolved 219-62.el7_6.3, systemd-journal-gateway 219-62.el7_6.3 Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) systemd 219-62.el7_6.3, libgudev1 219-62.el7_6.3, systemd-libs 219-62.el7_6.3, systemd-sysv 219-62.el7_6.3, systemd-python 219-62.el7_6.3 Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) systemd-networkd 219-62.el7_6.3, systemd-resolved 219-62.el7_6.3, systemd-journal-gateway 219-62.el7_6.3
    +4 more products
    Red Hat Enterprise Linux Server (v. 7) systemd 219-62.el7_6.3, libgudev1 219-62.el7_6.3, systemd-libs 219-62.el7_6.3, systemd-sysv 219-62.el7_6.3, systemd-python 219-62.el7_6.3 Red Hat Enterprise Linux Server Optional (v. 7) systemd-networkd 219-62.el7_6.3, systemd-resolved 219-62.el7_6.3, systemd-journal-gateway 219-62.el7_6.3 Red Hat Enterprise Linux Workstation (v. 7) systemd 219-62.el7_6.3, libgudev1 219-62.el7_6.3, systemd-libs 219-62.el7_6.3, systemd-sysv 219-62.el7_6.3, systemd-python 219-62.el7_6.3 Red Hat Enterprise Linux Workstation Optional (v. 7) systemd-networkd 219-62.el7_6.3, systemd-resolved 219-62.el7_6.3, systemd-journal-gateway 219-62.el7_6.3
    fixed: vendor fix RHSA-2019:0201
  • Red Hat Enterprise Linux 8 systemd, systemd-pam, systemd-libs, systemd-udev, systemd-tests, systemd-container, +1 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 3.3 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
NVD 3.1 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • The systemd Project systemd

Classification

Weakness
  • CWE-401 Missing Release of Memory after Effective Lifetime

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.