Detections
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Amazon Linux 2 : unzip (ALAS-2021-1604)

high Nessus Plugin ID 146632

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Synopsis

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

Description

The version of unzip installed on the remote host is prior to 6.0-43. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2021-1604 advisory.

 Info-ZIP UnZip 6.0 allows remote attackers to cause a denial of service (infinite loop) via empty bzip2 data in a ZIP archive. (CVE-2015-7697)

 Buffer overflow in the zi_short function in zipinfo.c in Info-Zip UnZip 6.0 allows remote attackers to cause a denial of service (crash) via a large compression method value in the central directory file header. (CVE-2016-9844)

 A heap-based buffer overflow exists in Info-Zip UnZip version <= 6.00 in the processing of password- protected archives that allows an attacker to perform a denial of service or to possibly achieve code execution. (CVE-2018-1000035)

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 unzip' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2021-1604.html

https://access.redhat.com/security/cve/CVE-2015-7697

https://access.redhat.com/security/cve/CVE-2016-9844

https://access.redhat.com/security/cve/CVE-2018-1000035

Plugin Details

Severity: High

ID: 146632

File Name: al2_ALAS-2021-1604.nasl

Version: 1.4

Type: local

Agent: unix

Published: 2/19/2021

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: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2018-1000035

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:unzip, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:unzip-debuginfo

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: 2/17/2021

Vulnerability Publication Date: 9/7/2015

Reference Information

CVE: CVE-2015-7697, CVE-2016-9844, CVE-2018-1000035

BID: 76863, 94728

ALAS: 2021-1604