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Amazon Linux 2 : e2fsprogs (ALAS-2020-1509)

medium Nessus Plugin ID 141949

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Synopsis

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

Description

The version of tested product installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2020-1509 advisory.

 - An exploitable code execution vulnerability exists in the quota file functionality of E2fsprogs 1.45.3. A specially crafted ext4 partition can cause an out-of-bounds write on the heap, resulting in code execution. An attacker can corrupt a partition to trigger this vulnerability. (CVE-2019-5094)

 - A code execution vulnerability exists in the directory rehashing functionality of E2fsprogs e2fsck 1.45.4.
 A specially crafted ext4 directory can cause an out-of-bounds write on the stack, resulting in code execution. An attacker can corrupt a partition to trigger this vulnerability. (CVE-2019-5188)

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 e2fsprogs' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2020-1509.html

https://access.redhat.com/security/cve/CVE-2019-5094

https://access.redhat.com/security/cve/CVE-2019-5188

Plugin Details

Severity: Medium

ID: 141949

File Name: al2_ALAS-2020-1509.nasl

Version: 1.3

Type: local

Agent: unix

Published: 10/27/2020

Updated: 2/13/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.6

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

CVSS Score Source: CVE-2019-5094

CVSS v3

Risk Factor: Medium

Base Score: 6.7

Temporal Score: 6

Vector: CVSS:3.0/AV:L/AC:L/PR:H/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-2019-5188

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:e2fsprogs, p-cpe:/a:amazon:linux:e2fsprogs-debuginfo, p-cpe:/a:amazon:linux:e2fsprogs-devel, p-cpe:/a:amazon:linux:e2fsprogs-libs, p-cpe:/a:amazon:linux:e2fsprogs-static, p-cpe:/a:amazon:linux:libcom_err, p-cpe:/a:amazon:linux:libcom_err-devel, p-cpe:/a:amazon:linux:libss, p-cpe:/a:amazon:linux:libss-devel, cpe:/o:amazon:linux:2

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: 10/22/2020

Vulnerability Publication Date: 9/24/2019

Reference Information

CVE: CVE-2019-5094, CVE-2019-5188

ALAS: 2020-1509