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Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : AppArmor update (USN-3784-1)

high Nessus Plugin ID 117934

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Synopsis

The remote Ubuntu host is missing a security update.

Description

As a security improvement, this update adjusts the private-files abstraction to disallow writing to thumbnailer configuration files.
Additionally adjust the private-files, private-files-strict and user-files abstractions to disallow writes on parent directories of sensitive files.

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-3784-1

Plugin Details

Severity: High

ID: 117934

File Name: ubuntu_USN-3784-1.nasl

Version: 1.6

Type: local

Agent: unix

Published: 10/5/2018

Updated: 10/21/2023

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:apparmor, p-cpe:/a:canonical:ubuntu_linux:apparmor-easyprof, p-cpe:/a:canonical:ubuntu_linux:apparmor-notify, p-cpe:/a:canonical:ubuntu_linux:apparmor-profiles, p-cpe:/a:canonical:ubuntu_linux:apparmor-utils, p-cpe:/a:canonical:ubuntu_linux:dh-apparmor, p-cpe:/a:canonical:ubuntu_linux:libapache2-mod-apparmor, p-cpe:/a:canonical:ubuntu_linux:libapparmor-dev, p-cpe:/a:canonical:ubuntu_linux:libapparmor-perl, p-cpe:/a:canonical:ubuntu_linux:libapparmor1, p-cpe:/a:canonical:ubuntu_linux:libpam-apparmor, p-cpe:/a:canonical:ubuntu_linux:python-apparmor, p-cpe:/a:canonical:ubuntu_linux:python-libapparmor, p-cpe:/a:canonical:ubuntu_linux:python3-apparmor, p-cpe:/a:canonical:ubuntu_linux:python3-libapparmor, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-: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: 10/4/2018

Vulnerability Publication Date: 10/4/2018

Reference Information

USN: 3784-1