Home/CVE/An issue was discovered in button_open in login/logind-button.c in systemd before 243. When executing the udevadm trigge
CVE

CVE-2019-20386

An issue was discovered in button_open in login/logind-button.c in systemd before 243. When executing the udevadm trigge

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.

LOW · CVSS 2.4 EPSS 0.00152
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-401Missing Release of Memory after Effective Lifetime
CWE-401Missing Release of Memory after Effective Lifetime
▤

Affected Products & Versions

7
systemd project systemd< 243
canonical ubuntu linuxall versions
fedoraproject fedoraall versions
opensuse leapall versions
netapp active iq unified managerall versions
netapp cloud backupall versions
netapp steelstore cloud integrated storageall versions
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumSystemd Service Creation
▣

Scoring & Timeline

2.4
LOW · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD21 Jan 2020 · 06:15 AM
CVSS VectorCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

10
suse-csafopenSUSE-SU-2024:11420-1
rhsaRHSA-2021:0949Important
msrcCVE-2019-20386
suse-csafSUSE-SU-2020:1842-1
suse-csafSUSE-SU-2020:1828-1
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00014.htmlThird Party Advisory
https://github.com/systemd/systemd/commit/b2774a3ae692113e1f47a336a6c09bac9cfb49adPatchThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HZPCOMW5X6IZZXASCDD2CNW2DLF3YADC/
https://security.netapp.com/advisory/ntap-20200210-0002/Third Party Advisory
https://usn.ubuntu.com/4269-1/Third Party Advisory
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