#VU63371 Security features bypass in python3-apport (Ubuntu package) and apport (Ubuntu package) - CVE-2022-28657

Vulnerability identifier: #VU63371

Vulnerability risk: Low

CVSSv4.0: 5.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-28657

CWE-ID: CWE-254

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
python3-apport (Ubuntu package)
Operating systems & Components / Operating system package or component
apport (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor: Canonical Ltd.

Description

The vulnerability allows a local user to execute arbitrary code with escalated privileges.

The vulnerability exists due to Apport does not disable the python crash handler before chrooting into a container. A local user can bypass implemented security restrictions and execute arbitrary code with escalated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

python3-apport (Ubuntu package): before 2.20.9-0ubuntu7.28

apport (Ubuntu package): before 2.20.9-0ubuntu7.28

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External links
https://ubuntu.com/security/notices/USN-5427-1

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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.