CVE Database›Document archive›CVE-2022-45873

CVE-2022-45873

systemd: deadlock in systemd-coredump via a crash with a long backtrace

Loading…

Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · October 18, 2022

Updated · November 21, 2025

Description

A flaw was found in the systemd-coredump utility of systemd. When an application crashes, the systemd-coredump utility is called twice, once by the kernel and the second time in the [email protected] to write the data, process, and save the core file. Communication between the programs is made through a pipe, and when there is too much data through a long backtrace or many linked libraries, the pipe blocks while waiting for the data, resulting in a timeout of the [email protected].

Statement

This vulnerability is only triggered when an application crashes and there is too much data about the crash that needs to be passed to the systemd-coredump utility, specifically more than 65536 bytes, and it will result in a Denial of Service. For this reason, this flaw has been rated as having a moderate security impact.

The systemd-coredump utility of systemd as shipped with Red Hat Enterprise Linux 8 does not use the inter-process communication related to this flaw. Therefore, it's not affected.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-833 · Deadlock