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CVE-2022-45873

nvd nist
Published: Nov 23, 2022Modified: Jun 17, 2026

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5.5
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploitability: 1.8 / Impact: 3.6
Source: NVD

Description

systemd 250 and 251 allows local users to achieve a systemd-coredump deadlock by triggering a crash that has a long backtrace. This occurs in parse_elf_object in shared/elf-util.c. The exploitation methodology is to crash a binary calling the same function recursively, and put it in a deeply nested directory to make its backtrace large enough to cause the deadlock. This must be done 16 times when MaxConnections=16 is set for the systemd/units/systemd-coredump.socket file.

Affected (4)

Systemd Project
1 product
Systemd
Fedoraproject
1 product
Fedora
Configuration A
3 vulnerable
Vulnerable SoftwareAffected Versions
Systemd Project
Systemd
From 250 to 251
Systemd
Version 252 rc1
Systemd
Version 252 rc2
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Fedora
Version 36

Related CWEs

CWE-400
Uncontrolled Resource Consumption
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

References (8)

Source: cve@mitre.org
PatchThird Party Advisory
Source: cve@mitre.org
Issue TrackingPatchThird Party Advisory
Source: cve@mitre.org
Issue TrackingPatchThird Party Advisory
Source: cve@mitre.org
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingPatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingPatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.