Vulnerability identifier: #VU22532

Vulnerability risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-11485

CWE-ID: CWE-399

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
apport (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor: Canonical Ltd.

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to Apport mishandled lock-file creation. A local user can crash the Apport service.

Mitigation
Update the affected packages.

Ubuntu 19.10

apport - 2.20.11-0ubuntu8.2

python-apport - 2.20.11-0ubuntu8.2

python3-apport - 2.20.11-0ubuntu8.2

Ubuntu 19.04

apport - 2.20.10-0ubuntu27.3

python-apport - 2.20.10-0ubuntu27.3

python3-apport - 2.20.10-0ubuntu27.3

Ubuntu 18.04 LTS

apport - 2.20.9-0ubuntu7.9

python-apport - 2.20.9-0ubuntu7.9

python3-apport - 2.20.9-0ubuntu7.9

Ubuntu 16.04 LTS

apport - 2.20.1-0ubuntu2.21

python-apport - 2.20.1-0ubuntu2.21

python3-apport - 2.20.1-0ubuntu2.21

Vulnerable software versions

apport (Ubuntu package): 2.20.0 - 2.20.11-0ubuntu8.1

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External links
http://usn.ubuntu.com/4171-3/

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.