CVE-2022-45873

Published on: Not Yet Published

Last Modified on: 12/01/2022 02:33:00 PM UTC

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

Certain versions of Systemd from Systemd Project contain the following vulnerability:

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.

  • CVE-2022-45873 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as MEDIUM severity.

CVSS3 Score: 5.5 - MEDIUM

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
LOCAL LOW LOW NONE
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED NONE NONE HIGH

CVE References

Description Tags Link
Fix coredump deadlock with overly long backtraces by keszybz · Pull Request #25055 · systemd/systemd · GitHub github.com
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URL Logo MISC github.com/systemd/systemd/pull/25055#issuecomment-1313733553
resolved: various monitor fixes by poettering · Pull Request #24853 · systemd/systemd · GitHub github.com
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URL Logo MISC github.com/systemd/systemd/pull/24853#issuecomment-1326561497
coredump: avoid deadlock when passing processed backtrace data · systemd/[email protected] · GitHub github.com
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URL Logo MISC github.com/systemd/systemd/commit/076b807be472630692c5348c60d0c2b7b28ad437

Related QID Numbers

  • 904614 Common Base Linux Mariner (CBL-Mariner) Security Update for systemd (11523)

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationSystemd ProjectSystemd252rc1AllAll
ApplicationSystemd ProjectSystemd252rc2AllAll
ApplicationSystemd ProjectSystemdAllAllAllAll
  • cpe:2.3:a:systemd_project:systemd:252:rc1:*:*:*:*:*:*:
  • cpe:2.3:a:systemd_project:systemd:252:rc2:*:*:*:*:*:*:
  • cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2022-45873 : systemd 250 and 251 allows local users to achieve a systemd-coredump deadlock by triggering a cras… twitter.com/i/web/status/1… 2022-11-23 23:02:43
Reddit Logo Icon /r/netcve CVE-2022-45873 2022-11-23 23:38:46
© CVE.report 2022 Twitter Nitter Twitter Viewer |

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