Ubuntu 14.04 LTS : eCryptfs vulnerability (USN-2876-1)

high Nessus Plugin ID 88040

Synopsis

The remote Ubuntu host is missing a security update.

Description

Jann Horn discovered that mount.ecryptfs_private would mount over certain directories in the proc filesystem. A local attacker could use this to escalate their privileges. (CVE-2016-1572).

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-2876-1

Plugin Details

Severity: High

ID: 88040

File Name: ubuntu_USN-2876-1.nasl

Version: 2.14

Type: local

Agent: unix

Published: 1/21/2016

Updated: 10/23/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2016-1572

CVSS v3

Risk Factor: High

Base Score: 8.4

Temporal Score: 7.3

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:ecryptfs-utils, p-cpe:/a:canonical:ubuntu_linux:libecryptfs-dev, p-cpe:/a:canonical:ubuntu_linux:libecryptfs0, p-cpe:/a:canonical:ubuntu_linux:python-ecryptfs, cpe:/o:canonical:ubuntu_linux:14.04:-:lts

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/20/2016

Vulnerability Publication Date: 1/22/2016

Reference Information

CVE: CVE-2016-1572

USN: 2876-1