Detections
Analytics

GLSA-201808-02 : LinuX Containers user space utilities: Arbitrary file read

low Nessus Plugin ID 112076

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Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-201808-02 (LinuX Containers user space utilities: Arbitrary file read)

 lxc-user-nic when asked to delete a network interface will unconditionally open a user provided path. This code path may be used by an unprivileged user to check for the existence of a path which they wouldn’t otherwise be able to reach.
 Impact :

 A local unprivileged user could use this flaw to access arbitrary files, including special device files.
 Workaround :

 There is no known workaround at this time.

Solution

All LXC users should upgrade to the latest version:
 # emerge --sync # emerge --ask --oneshot --verbose '>=app-emulation/lxc-2.1.1-r1'

See Also

https://security.gentoo.org/glsa/201808-02

Plugin Details

Severity: Low

ID: 112076

File Name: gentoo_GLSA-201808-02.nasl

Version: 1.3

Type: local

Published: 8/23/2018

Updated: 10/18/2018

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.9

CVSS v2

Risk Factor: Low

Base Score: 2.1

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

CVSS v3

Risk Factor: Low

Base Score: 3.3

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

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:lxc, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 8/22/2018

Reference Information

CVE: CVE-2018-6556

GLSA: 201808-02