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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities
NOTICE UPDATE

NIST has updated the NVD program announcement page with additional information regarding recent concerns and the temporary delays in enrichment efforts.

CVE-2020-1712 Detail

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.


Severity

 


CVSS 3.x Severity and Metrics:

NIST CVSS score matches with CNA score
CNA:  Red Hat, Inc.
Base Score:  7.8 HIGH
Vector:  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: The NVD and the CNA have provided the same score. When this occurs only the CNA information is displayed, but the Acceptance Level icon for the CNA is given a checkmark to signify NVD concurrence.

References to Advisories, Solutions, and Tools

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Hyperlink 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 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free cwe source acceptance level NIST   Contributor acceptance level Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

5 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-1712
NVD Published Date:
03/31/2020
NVD Last Modified:
11/06/2023
Source:
Red Hat, Inc.