CVE-2019-20386
published 2020-01-21CVE-2019-20386: 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.
PriorityP44low2.4CVSS 3.1
AVPACLPRNUINSUCNINAL
EPSS
0.43%
34.8th percentile
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.
Affected
16 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | systemd | < systemd 243-5 (bookworm) | systemd 243-5 (bookworm) |
| fedoraproject | fedora | — | — |
| msrc | cbl_mariner_1.0_arm | — | — |
| msrc | cbl_mariner_1.0_x64 | — | — |
| msrc | cm1_systemd_239-34_on_cbl_mariner_1.0 | — | — |
| opensuse | leap | — | — |
| systemd_project | systemd | < 243 | 243 |
| systemd_project | systemd | >= 0 < 243-5 | 243-5 |
| systemd_project | systemd | >= 0 < 243-5 | 243-5 |
| systemd_project | systemd | >= 0 < 243-5 | 243-5 |
| systemd_project | systemd | >= 0 < 243-5 | 243-5 |
| systemd_project | systemd | >= 0 < 229-4ubuntu21.27 | 229-4ubuntu21.27 |
| systemd_project | systemd | >= 0 < 237-3ubuntu10.38 | 237-3ubuntu10.38 |
CVSS provenance
nvdv3.12.4LOWCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:N/I:N/A:P
osv4.7MEDIUM
vendor_ubuntu4.7MEDIUM
vendor_debian2.4LOW
vendor_msrc2.4LOW
vendor_redhat2.4LOW
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GHSA
GHSA-v2g8-4fgq-7rhx: An issue was discovered in button_open in login/logind-button
ghsa_unreviewed·2022-05-24
CVE-2019-20386 [MEDIUM] CWE-401 GHSA-v2g8-4fgq-7rhx: An issue was discovered in button_open in login/logind-button
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.
OSV
systemd vulnerabilities
osv·2020-02-05·CVSS 4.7
CVE-2018-16888 [MEDIUM] systemd vulnerabilities
systemd vulnerabilities
It was discovered that systemd incorrectly handled certain PIDFile files.
A local attacker could possibly use this issue to trick systemd into
killing privileged processes. This issue only affected Ubuntu 16.04 LTS.
(CVE-2018-16888)
It was discovered that systemd incorrectly handled certain udevadm trigger
commands. A local attacker could possibly use this issue to cause systemd
to consume resources, leading to a denial of service. (CVE-2019-20386)
Jann Horn discovered that systemd incorrectly handled services that use the
DynamicUser property. A local attacker could possibly use this issue to
access resources owned by a different service in the future. This issue
only affected Ubuntu 18.04 LTS. (CVE-2019-3843, CVE-2019-3844)
Tavis Ormandy discovered that system
OSV
CVE-2019-20386: An issue was discovered in button_open in login/logind-button
osv·2020-01-21·CVSS 2.4
CVE-2019-20386 [LOW] CVE-2019-20386: An issue was discovered in button_open in login/logind-button
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.
Ubuntu
systemd vulnerabilities
vendor_ubuntu·2020-02-05·CVSS 4.7
CVE-2018-16888 [MEDIUM] systemd vulnerabilities
Title: systemd vulnerabilities
Summary: Several security issues were fixed in systemd.
It was discovered that systemd incorrectly handled certain PIDFile files.
A local attacker could possibly use this issue to trick systemd into
killing privileged processes. This issue only affected Ubuntu 16.04 LTS.
(CVE-2018-16888)
It was discovered that systemd incorrectly handled certain udevadm trigger
commands. A local attacker could possibly use this issue to cause systemd
to consume resources, leading to a denial of service. (CVE-2019-20386)
Jann Horn discovered that systemd incorrectly handled services that use the
DynamicUser property. A local attacker could possibly use this issue to
access resources owned by a different service in the future. This issue
only affected Ubuntu 18.04 LTS. (CVE
Red Hat
systemd: memory leak in button_open() in login/logind-button.c when udev events are received
vendor_redhat·2020-01-22·CVSS 2.4
CVE-2019-20386 [LOW] CWE-400 systemd: memory leak in button_open() in login/logind-button.c when udev events are received
systemd: memory leak in button_open() in login/logind-button.c when udev events are received
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.
A memory leak was discovered in the systemd-login when a power-switch event is received. A physical attacker may trigger one of these events and leak bytes due to a missing free.
Statement: The version of systemd delivered in OpenShift Container Platform 4.1 and included in CoreOS images has been superseded by the version delivered in Red Hat Enterprise Linux 8. CoreOS updates for systemd in will be consumed from Red Hat Enterprise Linux 8 channels.
Package: systemd (Red Hat OpenShift Container Platform 4) - Will not fix
Microsoft
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.
vendor_msrc·2020-01-14·CVSS 2.4
CVE-2019-20386 [LOW] CWE-401 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.
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.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
mitre
Debian
CVE-2019-20386: systemd - An issue was discovered in button_open in login/logind-button.c in systemd befor...
vendor_debian·2019·CVSS 2.4
CVE-2019-20386 [LOW] CVE-2019-20386: systemd - An issue was discovered in button_open in login/logind-button.c in systemd befor...
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.
Scope: local
bookworm: resolved (fixed in 243-5)
bullseye: resolved (fixed in 243-5)
forky: resolved (fixed in 243-5)
sid: resolved (fixed in 243-5)
trixie: resolved (fixed in 243-5)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2019-20386 systemd: memory leak in button_open() in login/logind-button.c when udev events are received
bugzilla·2020-01-22·CVSS 2.4
CVE-2019-20386 [LOW] CVE-2019-20386 systemd: memory leak in button_open() in login/logind-button.c when udev events are received
CVE-2019-20386 systemd: memory leak in button_open() in login/logind-button.c when udev events are received
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.
Upstream Fix:
https://github.com/systemd/systemd/commit/b2774a3ae692113e1f47a336a6c09bac9cfb49ad
Discussion:
Created systemd tracking bugs for this issue:
Affects: fedora-30 [bug 1793980]
---
Statement:
The version of systemd delivered in OpenShift Container Platform 4.1 and included in CoreOS images has been superseded by the version delivered in Red Hat Enterprise Linux 8. CoreOS updates for systemd in will be consumed from Red Hat Enterprise Linux 8 channels.
---
In systemd v239 (-> means "is called from"):
logind-b
Bugzilla
CVE-2019-20386 systemd: a memory leak was discovered in button_open in login/logind-button.c when executing the udevadm trigger command [fedora-30]
bugzilla·2020-01-22·CVSS 2.4
CVE-2019-20386 [LOW] CVE-2019-20386 systemd: a memory leak was discovered in button_open in login/logind-button.c when executing the udevadm trigger command [fedora-30]
CVE-2019-20386 systemd: a memory leak was discovered in button_open in login/logind-button.c when executing the udevadm trigger command [fedora-30]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-30.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00014.htmlhttps://github.com/systemd/systemd/commit/b2774a3ae692113e1f47a336a6c09bac9cfb49adhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HZPCOMW5X6IZZXASCDD2CNW2DLF3YADC/https://security.netapp.com/advisory/ntap-20200210-0002/https://usn.ubuntu.com/4269-1/http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00014.htmlhttps://github.com/systemd/systemd/commit/b2774a3ae692113e1f47a336a6c09bac9cfb49adhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HZPCOMW5X6IZZXASCDD2CNW2DLF3YADC/https://security.netapp.com/advisory/ntap-20200210-0002/https://usn.ubuntu.com/4269-1/
2020-01-21
Published