Amazon Linux 2 : gvfs, --advisory ALAS2-2026-3197 (ALAS-2026-3197)

medium Nessus Plugin ID 303102

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Synopsis

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

Description

The version of gvfs installed on the remote host is prior to 1.36.2-3. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3197 advisory.

A flaw was found in the FTP GVfs backend. A malicious FTP server can exploit this vulnerability by providing an arbitrary IP address and port in its passive mode (PASV) response. The client unconditionally trusts this information and attempts to connect to the specified endpoint, allowing the malicious server to probe for open ports accessible from the client's network. (CVE-2026-28295)

A flaw was found in the FTP GVfs backend. A remote attacker could exploit this input validation vulnerability by supplying specially crafted file paths containing carriage return and line feed (CRLF) sequences. These unsanitized sequences allow the attacker to terminate intended FTP commands and inject arbitrary FTP commands, potentially leading to arbitrary code execution or other severe impacts.
(CVE-2026-28296)

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 gvfs' or or 'yum update --advisory ALAS2-2026-3197' to update your system.

Plugin Details

Severity: Medium

ID: 303102

File Name: al2_ALAS-2026-3197.nasl

Version: 1.2

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 3/19/2026

Updated: 3/20/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 2.2

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-28296

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.8

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:gvfs-afc, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:gvfs-mtp, p-cpe:/a:amazon:linux:gvfs, p-cpe:/a:amazon:linux:gvfs-client, p-cpe:/a:amazon:linux:gvfs-fuse, p-cpe:/a:amazon:linux:gvfs-goa, p-cpe:/a:amazon:linux:gvfs-archive, p-cpe:/a:amazon:linux:gvfs-afp, p-cpe:/a:amazon:linux:gvfs-debuginfo, p-cpe:/a:amazon:linux:gvfs-tests, p-cpe:/a:amazon:linux:gvfs-devel, p-cpe:/a:amazon:linux:gvfs-gphoto2, p-cpe:/a:amazon:linux:gvfs-smb

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/19/2026

Vulnerability Publication Date: 2/26/2026

Reference Information

CVE: CVE-2026-28295, CVE-2026-28296

Detections

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