Ubuntu 16.04 LTS / 18.04 LTS : Apport regression (USN-4171-3)

high Nessus Plugin ID 130586

Synopsis

The remote Ubuntu host is missing a security update.

Description

USN-4171-1 fixed vulnerabilities in Apport. The update caused a regression in the Python Apport library. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details :

Kevin Backhouse discovered Apport would read its user-controlled settings file as the root user. This could be used by a local attacker to possibly crash Apport or have other unspecified consequences.
(CVE-2019-11481)

Sander Bos discovered a race-condition in Apport during core dump creation. This could be used by a local attacker to generate a crash report for a privileged process that is readable by an unprivileged user. (CVE-2019-11482)

Sander Bos discovered Apport mishandled crash dumps originating from containers. This could be used by a local attacker to generate a crash report for a privileged process that is readable by an unprivileged user. (CVE-2019-11483)

Sander Bos discovered Apport mishandled lock-file creation.
This could be used by a local attacker to cause a denial of service against Apport. (CVE-2019-11485)

Kevin Backhouse discovered Apport read various process-specific files with elevated privileges during crash dump generation. This could could be used by a local attacker to generate a crash report for a privileged process that is readable by an unprivileged user. (CVE-2019-15790).

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-4171-3

Plugin Details

Severity: High

ID: 130586

File Name: ubuntu_USN-4171-3.nasl

Version: 1.7

Type: local

Agent: unix

Published: 11/6/2019

Updated: 10/21/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.8

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

CVSS Score Source: CVE-2019-11481

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:apport, p-cpe:/a:canonical:ubuntu_linux:apport-gtk, p-cpe:/a:canonical:ubuntu_linux:apport-kde, p-cpe:/a:canonical:ubuntu_linux:apport-noui, p-cpe:/a:canonical:ubuntu_linux:apport-retrace, p-cpe:/a:canonical:ubuntu_linux:apport-valgrind, p-cpe:/a:canonical:ubuntu_linux:dh-apport, p-cpe:/a:canonical:ubuntu_linux:python-apport, p-cpe:/a:canonical:ubuntu_linux:python-problem-report, p-cpe:/a:canonical:ubuntu_linux:python3-apport, p-cpe:/a:canonical:ubuntu_linux:python3-problem-report, 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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/5/2019

Vulnerability Publication Date: 2/8/2020

Reference Information

CVE: CVE-2019-11481, CVE-2019-11482, CVE-2019-11483, CVE-2019-11485, CVE-2019-15790

USN: 4171-3