Executive Summary

Informations
Name CVE-2022-45873 First vendor Publication 2022-11-23
Vendor Cve Last vendor Modification 2023-11-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 5.5
Base Score 5.5 Environmental Score 5.5
impact SubScore 3.6 Temporal Score 5.5
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-45873

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 63
Os 1

Sources (Detail)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
Source Url
MISC https://github.com/systemd/systemd/commit/076b807be472630692c5348c60d0c2b7b28...
https://github.com/systemd/systemd/pull/24853#issuecomment-1326561497
https://github.com/systemd/systemd/pull/25055#issuecomment-1313733553

Alert History

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Date Informations
2023-11-07 21:31:12
  • Multiple Updates
2023-03-01 17:27:32
  • Multiple Updates
2022-12-31 09:27:24
  • Multiple Updates
2022-12-01 17:27:26
  • Multiple Updates
2022-11-26 02:08:40
  • Multiple Updates
2022-11-25 21:27:12
  • Multiple Updates
2022-11-25 13:11:02
  • Multiple Updates
2022-11-24 09:27:14
  • Multiple Updates
2022-11-24 05:27:17
  • First insertion