Detections
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Amazon Linux AMI : file (ALAS-2014-323)

medium Nessus Plugin ID 73651

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Synopsis

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

Description

The BEGIN regular expression in the awk script detector in magic/Magdir/commands in file before 5.15 uses multiple wildcards with unlimited repetitions, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted ASCII file that triggers a large amount of backtracking, as demonstrated via a file with many newline characters.

Solution

Run 'yum update file' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2014-323.html

Plugin Details

Severity: Medium

ID: 73651

File Name: ala_ALAS-2014-323.nasl

Version: 1.5

Type: local

Agent: unix

Published: 4/23/2014

Updated: 4/18/2018

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.2

CVSS v2

Risk Factor: Medium

Base Score: 5

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:file, p-cpe:/a:amazon:linux:file-devel, p-cpe:/a:amazon:linux:python-magic, p-cpe:/a:amazon:linux:file-libs, p-cpe:/a:amazon:linux:file-debuginfo, cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:file-static

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

Patch Publication Date: 4/10/2014

Reference Information

CVE: CVE-2013-7345

ALAS: 2014-323