Vulnerability identifier: #VU33996

Vulnerability risk: Medium

CVSSv3.1: 5.9 [CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-2024

CWE-ID: CWE-59

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Kata Containers
Server applications / Virtualization software

Vendor: Kata Containers

Description

The vulnerability allows a remote attacker to perform a denial of service attack.

An improper link resolution vulnerability affects Kata Containers versions prior to 1.11.0. Upon container teardown, a malicious guest can trick the kata-runtime into unmounting any mount point on the host and all mount points underneath it, potentiality resulting in a host DoS.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Kata Containers: 1.9.3 - 1.10.6

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External links
http://github.com/kata-containers/runtime/issues/2474
http://github.com/kata-containers/runtime/pull/2475

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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