Detections
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Amazon Linux AMI : nss / nss-util (ALAS-2017-825)

critical Nessus Plugin ID 99713

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Synopsis

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

Description

An out-of-bounds write flaw was found in the way NSS performed certain Base64-decoding operations. An attacker could use this flaw to create a specially crafted certificate which, when parsed by NSS, could cause it to crash or execute arbitrary code, using the permissions of the user running an application compiled against the NSS library.
(CVE-2017-5461)

Upstream acknowledges Ronald Crane as the original reporter.

Solution

Run 'yum update nss' to update your system.

Run 'yum update nss-util' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2017-825.html

Plugin Details

Severity: Critical

ID: 99713

File Name: ala_ALAS-2017-825.nasl

Version: 3.4

Type: local

Agent: unix

Published: 4/28/2017

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: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

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

CVSS v3

Risk Factor: Critical

Base Score: 9.8

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:nss-util-devel, p-cpe:/a:amazon:linux:nss-util, p-cpe:/a:amazon:linux:nss, p-cpe:/a:amazon:linux:nss-sysinit, p-cpe:/a:amazon:linux:nss-pkcs11-devel, p-cpe:/a:amazon:linux:nss-tools, p-cpe:/a:amazon:linux:nss-debuginfo, p-cpe:/a:amazon:linux:nss-util-debuginfo, cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:nss-devel

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

Patch Publication Date: 4/27/2017

Reference Information

CVE: CVE-2017-5461

ALAS: 2017-825

RHSA: 2017:1100