Debian DLA-397-1 : ecryptfs-utils security update

high Nessus Plugin ID 88023

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Synopsis

The remote Debian host is missing a security update.

Description

Jann Horn discovered that the setuid-root mount.ecryptfs_private helper in the ecryptfs-utils would mount over any target directory that the user owns, including a directory in procfs. A local attacker could use this flaw to escalate his privileges.

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

Solution

Upgrade the affected packages.

Plugin Details

Severity: High

ID: 88023

File Name: debian_DLA-397.nasl

Version: 2.11

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 1/21/2016

Updated: 1/11/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, 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 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:debian:debian_linux:libecryptfs0, cpe:/o:debian:debian_linux:6.0, p-cpe:/a:debian:debian_linux:libecryptfs-dev, p-cpe:/a:debian:debian_linux:ecryptfs-utils-dbg, p-cpe:/a:debian:debian_linux:ecryptfs-utils

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/20/2016

Reference Information

CVE: CVE-2016-1572

Detections

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