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    CVE-2020-1712

    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.

    Published:Feb 5, 2020
    Last Modified:Jun 9, 2025
    EPS:Mar 31, 2020
    EPSS Score:0.00106
    CVSS Score:7.8

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Redhat
    Product
    Ceph Storage
    Vendor
    Redhat
    Product
    Discovery
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Migration Toolkit
    Vendor
    Redhat
    Product
    Openshift Container Platform
    Vendor
    Redhat
    Product
    Rhel E4s
    Vendor
    Systemd Project
    Product
    Systemd

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-416 Use After Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1712
    https://github.com/systemd/systemd/commit/1068447e6954dc6ce52f099ed174c442cb89ed54
    https://github.com/systemd/systemd/commit/637486261528e8aa3da9f26a4487dc254f4b7abb
    https://github.com/systemd/systemd/commit/bc130b6858327b382b07b3985cf48e2aa9016b2d
    https://github.com/systemd/systemd/commit/ea0d0ede03c6f18dbc5036c5e9cccf97e415ccc2
    https://lists.debian.org/debian-lts-announce/2022/06/msg00025.html
    https://www.openwall.com/lists/oss-security/2020/02/05/1
    https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1712
    https://github.com/systemd/systemd/commit/1068447e6954dc6ce52f099ed174c442cb89ed54
    https://github.com/systemd/systemd/commit/637486261528e8aa3da9f26a4487dc254f4b7abb
    https://github.com/systemd/systemd/commit/bc130b6858327b382b07b3985cf48e2aa9016b2d
    https://github.com/systemd/systemd/commit/ea0d0ede03c6f18dbc5036c5e9cccf97e415ccc2
    https://lists.debian.org/debian-lts-announce/2022/06/msg00025.html
    https://www.openwall.com/lists/oss-security/2020/02/05/1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High