An issue was discovered in button_open in login/logind-button.c in systemd before 243.
Priority LOW 24CWE-401Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Partial Red Hat: 10 fixed, 1 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-401.
Summary
An issue was discovered in button_open in login/logind-button.c in systemd before 243. When executing the udevadm trigger command, a memory leak may occur.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00425 37th percentileScored 2026-11-07
Fix Partial Red Hat: 3 advisoriesRed Hat: 10 fixed, 1 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:* | before 243 | Vulnerable | systemd |
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* | 16.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | 18.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* | 19.10 | Vulnerable | Canonical |
| cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* | 30 | Vulnerable | Fedoraproject |
| cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* | 15.1 | Vulnerable | openSUSE |
| cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
- cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:* Versions before 243 Vulnerable ·systemd
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* Versions 16.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* Versions 19.10 Vulnerable ·Canonical
- cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* Versions 30 Vulnerable ·Fedoraproject
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·openSUSE
- cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
Remediation
Red Hat 3 advisories
- RHSA-2021:0949 Released 2021-03-22 · Red Hat rating LowRed Hat OpenShift Do openshift/odo-init-image 1.1.3 security update
- OpenShift Do 1 openshiftdo/odo-init-image-rhel7
- RHSA-2020:4553 Released 2020-11-04 · Red Hat rating Lowsystemd security, bug fix, and enhancement update
- Red Hat Enterprise Linux BaseOS (v. 8) systemd-239-40.el8, systemd-container-239-40.el8, systemd-devel-239-40.el8 +5
- RHSA-2020:4007 Released 2020-09-29 · Red Hat rating Lowsystemd security and bug fix update
- Red Hat Enterprise Linux Client (v. 7) libgudev1-219-78.el7, systemd-219-78.el7, systemd-libs-219-78.el7 +2
- Red Hat Enterprise Linux Client Optional (v. 7) libgudev1-devel-219-78.el7, systemd-devel-219-78.el7, systemd-journal-gateway-219-78.el7 +2
- Red Hat Enterprise Linux ComputeNode (v. 7) libgudev1-219-78.el7, systemd-219-78.el7, systemd-libs-219-78.el7 +2
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) libgudev1-devel-219-78.el7, systemd-devel-219-78.el7, systemd-journal-gateway-219-78.el7 +2
- Red Hat Enterprise Linux Server (v. 7) libgudev1-219-78.el7, libgudev1-219-78.el7.ppc, libgudev1-devel-219-78.el7 +8
- Red Hat Enterprise Linux Server Optional (v. 7) systemd-journal-gateway-219-78.el7, systemd-networkd-219-78.el7, systemd-resolved-219-78.el7 +1
- Red Hat Enterprise Linux Workstation (v. 7) libgudev1-219-78.el7, libgudev1-devel-219-78.el7, systemd-219-78.el7 +4
- Red Hat Enterprise Linux Workstation Optional (v. 7) systemd-journal-gateway-219-78.el7, systemd-networkd-219-78.el7, systemd-resolved-219-78.el7
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Container Platform 4 | Affected | No fix planned: Will not fix |
| OpenShift Do 1 | Fixed | RHSA-2021:0949 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2020:4553 |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2020:4007 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2020:4007 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2020:4007 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2020:4007 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2020:4007 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2020:4007 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2020:4007 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2020:4007 |
Timeline
- 2026-10-02 Threatist record created from CVE-2019-20386
- 2026-10-03 Alias added: GHSA-v2g8-4fgq-7rhx
References
Sources
- CVE-2019-20386 · CVE Program
- CVE-2019-20386 · NVD
- FIRST EPSS
- GHSA-v2g8-4fgq-7rhx · GitHub Advisory Database · CC BY 4.0
- CVE-2019-20386 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences