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Amazon Linux AMI : xterm (ALAS-2021-1489)

critical Nessus Plugin ID 147915

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Synopsis

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

Description

The version of xterm installed on the remote host is prior to 295-3.15. It is, therefore, affected by a vulnerability as referenced in the ALAS-2021-1489 advisory.

 - xterm through Patch #365 allows remote attackers to cause a denial of service (segmentation fault) or possibly have unspecified other impact via a crafted UTF-8 character sequence. (CVE-2021-27135)

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 xterm' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2021-1489.html

https://access.redhat.com/security/cve/CVE-2021-27135

Plugin Details

Severity: Critical

ID: 147915

File Name: ala_ALAS-2021-1489.nasl

Version: 1.2

Type: local

Agent: unix

Published: 3/20/2021

Updated: 3/20/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2021-27135

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, p-cpe:/a:amazon:linux:xterm-debuginfo, p-cpe:/a:amazon:linux:xterm

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/18/2021

Vulnerability Publication Date: 2/10/2021

Reference Information

CVE: CVE-2021-27135

ALAS: 2021-1489