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CVE-2020-1712

HIGH
7.8
CVSS Score
Published: March 31, 2020 at 04:44 PM UTC
Updated: October 14, 2026 at 09:17 AM UTC
7 products affected across 3 vendorsDebian LinuxEnterprise LinuxOpenShift Container Platform

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Severity
HIGH7.8
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

A heap use-after-free vulnerability was found in systemd before version v245-rc1, where asynchronous Polkit queries are performed while handling dbus messages. A local unprivileged attacker can abuse this flaw to crash systemd services or potentially execute code and elevate their privileges, by sending specially crafted dbus messages.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Debian Linux· Debiandrupal
95%
9.0
Ceph Storage· Red Hatrpm
95%
4.0
Discovery· Red Hatcontainer
95%
All versions
Enterprise Linux· Red Hatrpm
95%
8.0
Migration Toolkit· Red Hat
95%
1.0
OpenShift Container Platform· Red Hatcontainer
95%
4.0
Systemd· Systemd Project
95%
v ≤ 244
Affected range stops below 245-rc1, so it looks safe — our inference, not a vendor statement

References (8)

x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1712
x_refsource_CONFIRMPatchThird Party Advisory
Source: [email protected]
https://github.com/systemd/systemd/commit/1068447e6954dc6ce52f099ed174c442cb89ed54
x_refsource_CONFIRMPatchThird Party Advisory
Source: [email protected]
https://github.com/systemd/systemd/commit/637486261528e8aa3da9f26a4487dc254f4b7abb
x_refsource_CONFIRMPatchThird Party Advisory
Source: [email protected]
https://github.com/systemd/systemd/commit/bc130b6858327b382b07b3985cf48e2aa9016b2d
x_refsource_CONFIRMPatchThird Party Advisory
Source: [email protected]
https://github.com/systemd/systemd/commit/ea0d0ede03c6f18dbc5036c5e9cccf97e415ccc2
Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2022/06/msg00025.html
x_refsource_CONFIRMMailing ListPatchThird Party Advisory
Source: [email protected]
https://www.openwall.com/lists/oss-security/2020/02/05/1
Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
https://cert-portal.siemens.com/productcert/html/ssa-398330.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHredhat
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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