Vulnerability identifier: #VU34360

Vulnerability risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-2026

CWE-ID: CWE-59

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Runtime
Server applications / Virtualization software

Vendor: Kata Containers

Description

The vulnerability allows a local authenticated user to execute arbitrary code.

A malicious guest compromised before a container creation (e.g. a malicious guest image or a guest running multiple containers) can trick the kata runtime into mounting the untrusted container filesystem on any host path, potentially allowing for code execution on the host. This issue affects: Kata Containers 1.11 versions earlier than 1.11.1; Kata Containers 1.10 versions earlier than 1.10.5; Kata Containers 1.9 and earlier versions.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Runtime: 1.11.0

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External links
http://github.com/kata-containers/runtime/issues/2712
http://github.com/kata-containers/runtime/pull/2713
http://github.com/kata-containers/runtime/releases/tag/1.10.5
http://github.com/kata-containers/runtime/releases/tag/1.11.1

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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.