CVE-2020-1712
Systemd dbus Heap Use-After-Free Privilege Escalation
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.
INFO
Published Date :
March 31, 2020, 5:15 p.m.
Last Modified :
Nov. 7, 2023, 3:19 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2020-1712 has a 2 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2020-1712
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-1712.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1712 | Issue Tracking Patch Third Party Advisory |
| https://github.com/systemd/systemd/commit/1068447e6954dc6ce52f099ed174c442cb89ed54 | Patch Third Party Advisory |
| https://github.com/systemd/systemd/commit/637486261528e8aa3da9f26a4487dc254f4b7abb | Patch Third Party Advisory |
| https://github.com/systemd/systemd/commit/bc130b6858327b382b07b3985cf48e2aa9016b2d | Patch Third Party Advisory |
| https://github.com/systemd/systemd/commit/ea0d0ede03c6f18dbc5036c5e9cccf97e415ccc2 | Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/06/msg00025.html | Mailing List Third Party Advisory |
| https://www.openwall.com/lists/oss-security/2020/02/05/1 | Mailing List Patch Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
A command line tool which provides an alternative interface to snyk test
snyk
Makefile Dockerfile Crystal Open Policy Agent
CMPT 416 Project (Custom Clang Checker for systemd)
CMake C++
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-1712 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-1712 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Removed CVSS V3 Red Hat, Inc. AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 Red Hat, Inc. AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H -
Modified Analysis by [email protected]
Nov. 29, 2022
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/06/msg00025.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/06/msg00025.html Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jun. 30, 2022
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2022/06/msg00025.html [No Types Assigned] -
Reanalysis by [email protected]
Jan. 28, 2022
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:freedesktop:systemd:*:*:*:*:*:*:*:* versions up to (including) 244 OR *cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:* versions up to (including) 244 -
Initial Analysis by [email protected]
Apr. 10, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1712 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1712 Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://github.com/systemd/systemd/commit/1068447e6954dc6ce52f099ed174c442cb89ed54 No Types Assigned https://github.com/systemd/systemd/commit/1068447e6954dc6ce52f099ed174c442cb89ed54 Patch, Third Party Advisory Changed Reference Type https://github.com/systemd/systemd/commit/637486261528e8aa3da9f26a4487dc254f4b7abb No Types Assigned https://github.com/systemd/systemd/commit/637486261528e8aa3da9f26a4487dc254f4b7abb Patch, Third Party Advisory Changed Reference Type https://github.com/systemd/systemd/commit/bc130b6858327b382b07b3985cf48e2aa9016b2d No Types Assigned https://github.com/systemd/systemd/commit/bc130b6858327b382b07b3985cf48e2aa9016b2d Patch, Third Party Advisory Changed Reference Type https://github.com/systemd/systemd/commit/ea0d0ede03c6f18dbc5036c5e9cccf97e415ccc2 No Types Assigned https://github.com/systemd/systemd/commit/ea0d0ede03c6f18dbc5036c5e9cccf97e415ccc2 Patch, Third Party Advisory Changed Reference Type https://www.openwall.com/lists/oss-security/2020/02/05/1 No Types Assigned https://www.openwall.com/lists/oss-security/2020/02/05/1 Mailing List, Patch, Third Party Advisory Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:a:freedesktop:systemd:*:*:*:*:*:*:*:* versions up to (including) 244 Added CPE Configuration OR *cpe:2.3:a:redhat:ceph_storage:4.0:*:*:*:*:*:*:* *cpe:2.3:a:redhat:discovery:-:*:*:*:*:*:*:* *cpe:2.3:a:redhat:migration_toolkit:1.0:*:*:*:*:*:*:* *cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-1712 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-1712
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.00%
score
0.19788
percentile