Detections
Analytics

Amazon Linux 2 : rpm (ALASMOCK2-2026-002)

high Nessus Plugin ID 365219

Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

The version of rpm installed on the remote host is prior to 4.14.3-4. It is, therefore, affected by a vulnerability as referenced in the ALAS2MOCK2-2026-002 advisory.

 A flaw was found in rpmbuild. When rpmbuild processes a crafted tarball in tarball mode, a specially designed tar member name can lead to macro injection. This vulnerability allows a remote attacker to execute arbitrary code on the system by convincing a user to build a malicious tarball. (CVE-2026-78367)

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

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

Solution

Run 'yum update rpm' or or 'yum update --advisory ALAS2MOCK2-2026-002' to update your system.

See Also

https://alas.aws.amazon.com//AL2/ALAS2MOCK2-2026-002.html

https://alas.aws.amazon.com/faqs.html

https://explore.alas.aws.amazon.com/CVE-2026-78367.html

Plugin Details

Severity: High

ID: 365219

File Name: al2_ALASMOCK2-2026-002.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 10/12/2026

Updated: 10/12/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.18

CVSS v2

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 4.6

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

CVSS Score Source: CVE-2026-78367

CVSS v3

Risk Factor: High

Base Score: 7

Temporal Score: 6.1

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

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

Vulnerability Information

CPE: cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:python2-rpm, p-cpe:/a:amazon:linux:python3-rpm, p-cpe:/a:amazon:linux:rpm-apidocs, p-cpe:/a:amazon:linux:rpm-build-libs, p-cpe:/a:amazon:linux:rpm-build, p-cpe:/a:amazon:linux:rpm-cron, p-cpe:/a:amazon:linux:rpm-debuginfo, p-cpe:/a:amazon:linux:rpm-devel, p-cpe:/a:amazon:linux:rpm-libs, p-cpe:/a:amazon:linux:rpm-plugin-ima, p-cpe:/a:amazon:linux:rpm-plugin-prioreset, p-cpe:/a:amazon:linux:rpm-plugin-selinux, p-cpe:/a:amazon:linux:rpm-plugin-syslog, p-cpe:/a:amazon:linux:rpm-plugin-systemd-inhibit, p-cpe:/a:amazon:linux:rpm-sign, p-cpe:/a:amazon:linux:rpm

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/12/2026

Vulnerability Publication Date: 8/24/2026

Reference Information

CVE: CVE-2026-78367