Amazon Linux AMI : glibc (ALAS-2017-792)

medium Nessus Plugin ID 97022
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VPR Score: 3.6

Synopsis

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

Description

A stack overflow vulnerability was found in _nss_dns_getnetbyname_r.
On systems with nsswitch configured to include 'networks: dns' with a privileged or network-facing service that would attempt to resolve user-provided network names, an attacker could provide an excessively long network name, resulting in stack corruption and code execution.

Solution

Run 'yum update glibc' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2017-792.html

Plugin Details

Severity: Medium

ID: 97022

File Name: ala_ALAS-2017-792.nasl

Version: 3.2

Type: local

Agent: unix

Published: 2/7/2017

Updated: 4/18/2018

Dependencies: ssh_get_info.nasl

Risk Information

Risk Factor: Medium

VPR Score: 3.6

CVSS v2.0

Base Score: 5

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

CVSS v3.0

Base Score: 7.5

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

Vulnerability Information

CPE: cpe:2.3:o:amazon:linux:*:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:glibc:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:glibc-common:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:glibc-debuginfo:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:glibc-debuginfo-common:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:glibc-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:glibc-headers:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:glibc-static:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:glibc-utils:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:nscd:*:*:*:*:*:*:*

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

Patch Publication Date: 2/6/2017

Reference Information

CVE: CVE-2016-3075

ALAS: 2017-792