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Amazon Linux AMI : sssd (ALAS-2016-635)

medium Nessus Plugin ID 87969

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Synopsis

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

Description

It was found that SSSD's Privilege Attribute Certificate (PAC) responder plug-in would leak a small amount of memory on each authentication request. A remote attacker could potentially use this flaw to exhaust all available memory on the system by making repeated requests to a Kerberized daemon application configured to authenticate using the PAC responder plug-in.

Solution

Run 'yum update sssd' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2016-635.html

Plugin Details

Severity: Medium

ID: 87969

File Name: ala_ALAS-2016-635.nasl

Version: 2.2

Type: local

Agent: unix

Published: 1/19/2016

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: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 6.8

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:sssd-krb5, p-cpe:/a:amazon:linux:libsss_nss_idmap-devel, p-cpe:/a:amazon:linux:sssd-ad, p-cpe:/a:amazon:linux:libsss_idmap-devel, cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:sssd-proxy, p-cpe:/a:amazon:linux:python27-sss-murmur, p-cpe:/a:amazon:linux:libsss_idmap, p-cpe:/a:amazon:linux:python27-sssdconfig, p-cpe:/a:amazon:linux:python27-libipa_hbac, p-cpe:/a:amazon:linux:sssd-dbus, p-cpe:/a:amazon:linux:sssd-common, p-cpe:/a:amazon:linux:sssd-libwbclient, p-cpe:/a:amazon:linux:sssd, p-cpe:/a:amazon:linux:sssd-ldap, p-cpe:/a:amazon:linux:libipa_hbac-devel, p-cpe:/a:amazon:linux:libsss_simpleifp-devel, p-cpe:/a:amazon:linux:sssd-debuginfo, p-cpe:/a:amazon:linux:sssd-common-pac, p-cpe:/a:amazon:linux:sssd-ipa, p-cpe:/a:amazon:linux:sssd-client, p-cpe:/a:amazon:linux:python27-libsss_nss_idmap, p-cpe:/a:amazon:linux:sssd-krb5-common, p-cpe:/a:amazon:linux:sssd-tools, p-cpe:/a:amazon:linux:libsss_simpleifp, p-cpe:/a:amazon:linux:python27-sss, p-cpe:/a:amazon:linux:libipa_hbac, p-cpe:/a:amazon:linux:sssd-libwbclient-devel, p-cpe:/a:amazon:linux:libsss_nss_idmap

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

Patch Publication Date: 1/18/2016

Reference Information

CVE: CVE-2015-5292

ALAS: 2016-635