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AlmaLinux 9 : systemd (ALSA-2023:0954)

medium Nessus Plugin ID 172002

Synopsis

The remote AlmaLinux host is missing one or more security updates.

Description

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2023:0954 advisory.

 - A vulnerability was found in systemd. This security flaw can cause a local information leak due to systemd-coredump not respecting the fs.suid_dumpable kernel setting. (CVE-2022-4415)

 - 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 these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://errata.almalinux.org/9/ALSA-2023-0954.html

Plugin Details

Severity: Medium

ID: 172002

File Name: alma_linux_ALSA-2023-0954.nasl

Version: 1.1

Type: local

Published: 2/28/2023

Updated: 9/1/2023

Supported Sensors: Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.6

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

CVSS Score Source: CVE-2022-4415

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

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

Vulnerability Information

CPE: p-cpe:/a:alma:linux:systemd-container, p-cpe:/a:alma:linux:systemd-pam, p-cpe:/a:alma:linux:systemd-oomd, p-cpe:/a:alma:linux:systemd-udev, cpe:/o:alma:linux:9::appstream, p-cpe:/a:alma:linux:systemd-resolved, cpe:/o:alma:linux:9, p-cpe:/a:alma:linux:systemd-rpm-macros, p-cpe:/a:alma:linux:systemd-devel, p-cpe:/a:alma:linux:systemd-journal-remote, p-cpe:/a:alma:linux:systemd-libs, p-cpe:/a:alma:linux:systemd, cpe:/o:alma:linux:9::baseos

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/28/2023

Vulnerability Publication Date: 11/23/2022

Reference Information

CVE: CVE-2022-4415, CVE-2022-45873

CWE: 200, 833