Amazon Linux AMI : rsyslog (ALAS-2022-1594)

high Nessus Plugin ID 161998

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Synopsis

The remote Amazon Linux AMI host is missing a security update.

Description

The version of rsyslog installed on the remote host is prior to 5.8.10-9.29. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2022-1594 advisory.

A flaw was found in the way rsyslog handled invalid log message priority values. In certain configurations, a local attacker, or a remote attacker able to connect to the rsyslog port, could use this flaw to crash the rsyslog daemon or, potentially in rsyslog 7.x, execute arbitrary code as the user running the rsyslog daemon. (CVE-2014-3634)

A flaw was found in rsyslog's reception TCP modules. This flaw allows an attacker to craft a malicious message leading to a heap-based buffer overflow. This issue allows the attacker to corrupt or access data stored in memory, leading to a denial of service in the rsyslog or possible remote code execution.
(CVE-2022-24903)

Tenable has extracted the preceding description block directly from the tested product security advisory.

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

Solution

Run 'yum update rsyslog' to update your system.

Plugin Details

Severity: High

ID: 161998

File Name: ala_ALAS-2022-1594.nasl

Version: 1.4

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 6/10/2022

Updated: 12/11/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2014-3634

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.3

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

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

CVSS Score Source: CVE-2022-24903

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:rsyslog-pgsql, p-cpe:/a:amazon:linux:rsyslog, p-cpe:/a:amazon:linux:rsyslog-gnutls, p-cpe:/a:amazon:linux:rsyslog-mysql, p-cpe:/a:amazon:linux:rsyslog-snmp, p-cpe:/a:amazon:linux:rsyslog-debuginfo, cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:rsyslog-gssapi

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/31/2022

Vulnerability Publication Date: 9/30/2014

Reference Information

CVE: CVE-2014-3634, CVE-2022-24903

Detections

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