Amazon Linux 2 : perl-DBI (ALAS-2026-3985)

critical Nessus Plugin ID 365284

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Synopsis

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

Description

The version of perl-DBI installed on the remote host is prior to 1.627-4. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3985 advisory.

A critical arbitrary code execution vulnerability (CWE-94) found in the DBD::DBM database driver, which is a core component shipped within the Perl DBI (Database Interface) module. The flaw exists because the dbm_type and dbm_mldbm handle attributes pass user-influenced input directly into Perl's native require() function without verifying if the arguments are valid module names.Perl's require() function handles strings containing file paths differently than standard module names. If it receives a path-shaped string (e.g., pointing outside standard libraries), it treats it as a literal filename and bypasses the safe @INC directory restrictions. As a result, an attacker who can influence either of these configuration attributes can force the application to load and automatically execute an untrusted .pm (Perl module) file from any location on the filesystem. (CVE-2026-78030)

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 perl-DBI' or or 'yum update --advisory ALAS2-2026-3985' to update your system.

Plugin Details

Severity: Critical

ID: 365284

File Name: al2_ALAS-2026-3985.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Amazon Linux Local Security Checks

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: 58.41

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-2026-78030

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: cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:perl-dbi-debuginfo, p-cpe:/a:amazon:linux:perl-dbi

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: 9/10/2026

Reference Information

CVE: CVE-2026-78030

Detections

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