Detections
Analytics

CBL Mariner 2.0 Security Update: systemd / systemd-bootstrap (CVE-2022-45873)

medium Nessus Plugin ID 172763

Synopsis

The remote CBL Mariner host is missing one or more security updates.

Description

The version of systemd / systemd-bootstrap installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2022-45873 advisory.

 - 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)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://nvd.nist.gov/vuln/detail/CVE-2022-45873

Plugin Details

Severity: Medium

ID: 172763

File Name: mariner_systemd_CVE-2022-45873.nasl

Version: 1.1

Type: local

Published: 3/20/2023

Updated: 7/3/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

CVSS Score Source: CVE-2022-45873

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:microsoft:cbl-mariner:systemd-debuginfo, p-cpe:/a:microsoft:cbl-mariner:systemd-rpm-macros, x-cpe:/o:microsoft:cbl-mariner, p-cpe:/a:microsoft:cbl-mariner:systemd-devel, p-cpe:/a:microsoft:cbl-mariner:systemd-lang, p-cpe:/a:microsoft:cbl-mariner:systemd

Required KB Items: Host/local_checks_enabled, Host/CBLMariner/release, Host/CBLMariner/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 12/13/2022

Vulnerability Publication Date: 11/23/2022

Reference Information

CVE: CVE-2022-45873