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CentOS 7 : systemd (RHSA-2022:6160)

critical Nessus Plugin ID 164630

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Synopsis

The remote CentOS Linux host is missing a security update.

Description

The remote CentOS Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2022:6160 advisory.

 - A use-after-free vulnerability was found in systemd. This issue occurs due to the on_stream_io() function and dns_stream_complete() function in 'resolved-dns-stream.c' not incrementing the reference counting for the DnsStream object. Therefore, other functions and callbacks called can dereference the DNSStream object, causing the use-after-free when the reference is still used later. (CVE-2022-2526)

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://access.redhat.com/errata/RHSA-2022:6160

Plugin Details

Severity: Critical

ID: 164630

File Name: centos_RHSA-2022-6160.nasl

Version: 1.5

Type: local

Agent: unix

Published: 9/1/2022

Updated: 10/9/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2022-2526

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: p-cpe:/a:centos:centos:systemd-networkd, cpe:/o:centos:centos:7, p-cpe:/a:centos:centos:systemd-resolved, p-cpe:/a:centos:centos:systemd-devel, p-cpe:/a:centos:centos:systemd-journal-gateway, p-cpe:/a:centos:centos:systemd-sysv, p-cpe:/a:centos:centos:libgudev1-devel, p-cpe:/a:centos:centos:libgudev1, p-cpe:/a:centos:centos:systemd-python, p-cpe:/a:centos:centos:systemd-libs, p-cpe:/a:centos:centos:systemd

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/1/2022

Vulnerability Publication Date: 8/25/2022

Reference Information

CVE: CVE-2022-2526

RHSA: 2022:6160