Debian DSA-3450-1 : ecryptfs-utils - security update

high Nessus Plugin ID 88024

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Synopsis

The remote Debian host is missing a security-related 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.

Solution

Upgrade the ecryptfs-utils packages.

For the oldstable distribution (wheezy), this problem has been fixed in version 99-1+deb7u1.

For the stable distribution (jessie), this problem has been fixed in version 103-5+deb8u1.

Plugin Details

Severity: High

ID: 88024

File Name: debian_DSA-3450.nasl

Version: 2.10

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:ecryptfs-utils, cpe:/o:debian:debian_linux:8.0, cpe:/o:debian:debian_linux:7.0

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

DSA: 3450

Detections

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