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Amazon Linux AMI : pam (ALAS-2015-589)

medium Nessus Plugin ID 85747

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Synopsis

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

Description

It was discovered that the _unix_run_helper_binary() function of PAM's unix_pam module could write to a blocking pipe, possibly causing the function to become unresponsive. An attacker able to supply large passwords to the unix_pam module could use this flaw to enumerate valid user accounts, or cause a denial of service on the system.
(CVE-2015-3238)

Solution

Run 'yum update pam' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2015-589.html

Plugin Details

Severity: Medium

ID: 85747

File Name: ala_ALAS-2015-589.nasl

Version: 2.3

Type: local

Agent: unix

Published: 9/3/2015

Updated: 4/18/2018

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

Risk Information

VPR

Risk Factor: Low

Score: 3.3

CVSS v2

Risk Factor: Medium

Base Score: 5.8

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

CVSS v3

Risk Factor: Medium

Base Score: 6.5

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

Vulnerability Information

CPE: cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:pam-debuginfo, p-cpe:/a:amazon:linux:pam, p-cpe:/a:amazon:linux:pam-devel

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

Patch Publication Date: 9/2/2015

Reference Information

CVE: CVE-2015-3238

ALAS: 2015-589

RHSA: 2015:1640