Ubuntu 16.04 LTS : LXD vulnerabilities (USN-2988-1)

medium Nessus Plugin ID 91424

Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

Robie Basak discovered that LXD incorrectly set permissions when setting up a loop based ZFS pool. A local attacker could use this issue to copy and read the data of any LXD container. (CVE-2016-1581)

Robie Basak discovered that LXD incorrectly set permissions when switching an unprivileged container into privileged mode. A local attacker could use this issue to access any world readable path in the container directory, including setuid binaries. (CVE-2016-1582).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-2988-1

Plugin Details

Severity: Medium

ID: 91424

File Name: ubuntu_USN-2988-1.nasl

Version: 2.9

Type: local

Agent: unix

Published: 6/1/2016

Updated: 10/20/2023

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2016-1582

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:lxd, p-cpe:/a:canonical:ubuntu_linux:lxd-client, p-cpe:/a:canonical:ubuntu_linux:lxd-tools, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:golang-github-lxc-lxd-dev, p-cpe:/a:canonical:ubuntu_linux:lxc2

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Ease: No known exploits are available

Patch Publication Date: 5/31/2016

Vulnerability Publication Date: 6/9/2016

Reference Information

CVE: CVE-2016-1581, CVE-2016-1582

USN: 2988-1