Memory leak in systemd
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-401.
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| systemd | systemd | v219-62.2 and newer | — | No fix listed | CNA |
- systemd Vendorsystemd Affected v219-62.2 and newer Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:* | 3.11 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* | 7.6 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* | 7.6 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
- cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:* Versions 3.11 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
Remediation
Red Hat 1 advisory
- RHSA-2019:0201 Released 2019-01-29 · Red Hat rating Lowsystemd security update
- Red Hat Enterprise Linux Client (v. 7) libgudev1-219-62.el7_6.3, systemd-219-62.el7_6.3, systemd-libs-219-62.el7_6.3 +2
- Red Hat Enterprise Linux Client Optional (v. 7) libgudev1-devel-219-62.el7_6.3, systemd-devel-219-62.el7_6.3, systemd-journal-gateway-219-62.el7_6.3 +2
- Red Hat Enterprise Linux ComputeNode (v. 7) libgudev1-219-62.el7_6.3, systemd-219-62.el7_6.3, systemd-libs-219-62.el7_6.3 +2
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) libgudev1-devel-219-62.el7_6.3, systemd-devel-219-62.el7_6.3, systemd-journal-gateway-219-62.el7_6.3 +2
- Red Hat Enterprise Linux Server (v. 7) libgudev1-219-62.el7_6.3, libgudev1-219-62.el7_6.3.ppc, libgudev1-devel-219-62.el7_6.3 +8
- Red Hat Enterprise Linux Server Optional (v. 7) systemd-journal-gateway-219-62.el7_6.3, systemd-networkd-219-62.el7_6.3, systemd-resolved-219-62.el7_6.3 +1
- Red Hat Enterprise Linux Workstation (v. 7) libgudev1-219-62.el7_6.3, libgudev1-devel-219-62.el7_6.3, systemd-219-62.el7_6.3 +4
- Red Hat Enterprise Linux Workstation Optional (v. 7) systemd-journal-gateway-219-62.el7_6.3, systemd-networkd-219-62.el7_6.3, systemd-resolved-219-62.el7_6.3
- Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) libgudev1-219-62.el7_6.3, libgudev1-devel-219-62.el7_6.3, systemd-219-62.el7_6.3 +4
- Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) systemd-journal-gateway-219-62.el7_6.3, systemd-networkd-219-62.el7_6.3, systemd-resolved-219-62.el7_6.3
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2019:0201 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2019:0201 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2019:0201 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2019:0201 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2019:0201 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2019:0201 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2019:0201 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2019:0201 |
| Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) | Fixed | RHSA-2019:0201 |
| Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) | Fixed | RHSA-2019:0201 |
Not affected: 1 product
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2019-3815
- 2026-10-03 Alias added: GHSA-c7jw-qwf7-gqxx
References
More systemd vulnerabilities
- TI-2023-11736 systemd before 247 does not adequately block local privilege escalation for some Sudo… CVSS 3.1HIGH 7.8
- TI-2017-06857 In systemd through 233, certain sizes passed to dns_packet_new in systemd-resolved can… CVSS 3.1HIGH 7.5
- TI-2026-29031 In nspawn in systemd 233 through 259 before 260, an escape-to-host action can occur via a crafted optional config file. CVSS 3.1MEDIUM 6.4
- TI-2026-12675 systemd-oomd: unprivileged users can terminate arbitrary processes CVSS 3.1MEDIUM 5.5
- TI-2022-04038 Information disclosure in systemd CVSS 3.1MEDIUM 5.5
- TI-2025-04111 Systemd-coredump: race condition that allows a local attacker to crash a suid program and… CVSS 3.1MEDIUM 4.7
Sources
- CVE-2019-3815 · CVE Program
- CVE-2019-3815 · NVD
- FIRST EPSS
- GHSA-c7jw-qwf7-gqxx · GitHub Advisory Database · CC BY 4.0
- CVE-2019-3815 · Red Hat security data · CC BY 4.0
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