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Amazon Linux AMI : runc (ALAS-2020-1358)

high Nessus Plugin ID 135934

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Synopsis

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

Description

The version of runc installed on the remote host is prior to 1.0.0-0.1.20200204.gitdc9208a.1. It is, therefore, affected by a vulnerability as referenced in the ALAS-2020-1358 advisory.

 runc through 1.0.0-rc9 has Incorrect Access Control leading to Escalation of Privileges, related to libcontainer/rootfs_linux.go. To exploit this, an attacker must be able to spawn two containers with custom volume-mount configurations, and be able to run custom images. (This vulnerability does not affect Docker due to an implementation detail that happens to block the attack.) (CVE-2019-19921)

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 runc' to update your system.

See Also

https://access.redhat.com/security/cve/CVE-2019-19921

https://alas.aws.amazon.com/ALAS-2020-1358.html

Plugin Details

Severity: High

ID: 135934

File Name: ala_ALAS-2020-1358.nasl

Version: 1.4

Type: local

Agent: unix

Published: 4/24/2020

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: Medium

Base Score: 4.4

Temporal Score: 3.3

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

CVSS Score Source: CVE-2019-19921

CVSS v3

Risk Factor: High

Base Score: 7

Temporal Score: 6.1

Vector: CVSS:3.0/AV:L/AC:H/PR:L/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, p-cpe:/a:amazon:linux:runc, p-cpe:/a:amazon:linux:runc-debuginfo

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/23/2020

Vulnerability Publication Date: 2/12/2020

Reference Information

CVE: CVE-2019-19921

ALAS: 2020-1358