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Amazon Linux AMI : libcap-ng (ALAS-2015-543)

medium Nessus Plugin ID 84244

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Synopsis

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

Description

A flaw was found in the way seunshare, a utility for running executables under a different security context, used the capng_lock functionality of the libcap-ng library. The subsequent invocation of suid root binaries that relied on the fact that the setuid() system call, among others, also sets the saved set-user-ID when dropping the binaries' process privileges, could allow a local, unprivileged user to potentially escalate their privileges on the system.

Solution

Run 'yum update libcap-ng' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2015-543.html

Plugin Details

Severity: Medium

ID: 84244

File Name: ala_ALAS-2015-543.nasl

Version: 2.2

Type: local

Agent: unix

Published: 6/18/2015

Updated: 4/18/2018

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.9

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:libcap-ng, p-cpe:/a:amazon:linux:libcap-ng-python, p-cpe:/a:amazon:linux:libcap-ng-devel, p-cpe:/a:amazon:linux:libcap-ng-debuginfo, cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:libcap-ng-utils

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

Patch Publication Date: 6/16/2015

Reference Information

CVE: CVE-2014-3215

ALAS: 2015-543