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Amazon Linux 2 : kernel (ALAS-2020-1488)

high Nessus Plugin ID 140209

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Synopsis

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

Description

The version of kernel installed on the remote host is prior to 4.14.193-149.317. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2020-1488 advisory.

 An issue has been reported in the Linux kernel's handling of raw sockets. This issue can be used locally to cause denial of service or local privilege escalation from unprivileged processes or from containers with the CAP_NET_RAW capability enabled.

 See Also:

 https://marc.info/?l=linux-netdev&m=159915549623724&w=2https://www.openwall.com/lists/oss- security/2020/09/03/3https://cve.mitre.org/cgi-bin/cvename.cgi?name=2020-14386 (cve-2020-14386)

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 kernel' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2020-1488.html

https://access.redhat.com/security/cve/CVE-2020-14386

Plugin Details

Severity: High

ID: 140209

File Name: al2_ALAS-2020-1488.nasl

Version: 1.4

Type: local

Agent: unix

Published: 9/4/2020

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: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2020-14386

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/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: p-cpe:/a:amazon:linux:perf, p-cpe:/a:amazon:linux:kernel-livepatch-4.14.193-149.317, p-cpe:/a:amazon:linux:perf-debuginfo, p-cpe:/a:amazon:linux:kernel-tools-debuginfo, p-cpe:/a:amazon:linux:kernel-debuginfo-common-aarch64, p-cpe:/a:amazon:linux:kernel-tools, p-cpe:/a:amazon:linux:kernel-devel, p-cpe:/a:amazon:linux:python-perf-debuginfo, p-cpe:/a:amazon:linux:kernel, p-cpe:/a:amazon:linux:kernel-debuginfo, p-cpe:/a:amazon:linux:kernel-headers, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:kernel-tools-devel, p-cpe:/a:amazon:linux:kernel-debuginfo-common-x86_64, p-cpe:/a:amazon:linux:python-perf

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/3/2020

Vulnerability Publication Date: 9/3/2020

Reference Information

CVE: CVE-2020-14386

ALAS: 2020-1488