systemd up to 242 login/logind-button.c button_open Command release of resource

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.8$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in systemd up to 242. Affected by this issue is the function button_open of the file login/logind-button.c. The manipulation as part of Command results in release of resource. This vulnerability is reported as CVE-2019-20386. The attack can be launched remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in systemd up to 242. It has been classified as problematic. Affected is the function button_open of the file login/logind-button.c. The manipulation as part of a Command leads to a release of resource vulnerability. CWE is classifying the issue as CWE-772. The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed. This is going to have an impact on availability. CVE summarizes:

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.

The weakness was disclosed 01/21/2020. This vulnerability is traded as CVE-2019-20386 since 01/21/2020. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1499.

Upgrading to version 243 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.8
VulDB Meta Temp Score: 3.8

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 2.4
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Release of resource
CWE: CWE-772 / CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: systemd 243
Patch: github.com

Timelineinfo

01/21/2020 🔍
01/21/2020 +0 days 🔍
01/21/2020 +0 days 🔍
06/09/2025 +1966 days 🔍

Sourcesinfo

Product: github.com

Advisory: b2774a3ae692113e1f47a336a6c09bac9cfb49ad
Status: Confirmed

CVE: CVE-2019-20386 (🔍)
GCVE (CVE): GCVE-0-2019-20386
GCVE (VulDB): GCVE-100-149172

Entryinfo

Created: 01/21/2020 14:36
Updated: 06/09/2025 21:32
Changes: 01/21/2020 14:36 (38), 01/21/2020 14:41 (17), 03/25/2024 07:36 (20), 03/25/2024 07:43 (1), 06/09/2025 21:32 (10)
Complete: 🔍
Cache ID: 216::103

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