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CBL Mariner 2.0 Security Update: systemd (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 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: 1.0

Type: local

Published: 3/20/2023

Updated: 3/20/2023

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

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

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