Denial of Service (DoS) Affecting github.com/kata-containers/runtime/virtcontainers package, versions <1.11.0
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- Snyk ID SNYK-GOLANG-GITHUBCOMKATACONTAINERSRUNTIMEVIRTCONTAINERS-570070
- published 18 Feb 2020
- disclosed 20 May 2020
- credit Unknown
How to fix?
github.com/kata-containers/runtime/virtcontainers to version 1.11.0 or higher.
github.com/kata-containers/runtime/virtcontainers is a manages hardware virtualized containers. Each container belongs to a set of containers sharing the same networking namespace and storage, also known as a sandbox.
Affected versions of this package are vulnerable to Denial of Service (DoS). 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.
Denial of Service (DoS) describes a family of attacks, all aimed at making a system inaccessible to its intended and legitimate users.
Unlike other vulnerabilities, DoS attacks usually do not aim at breaching security. Rather, they are focused on making websites and services unavailable to genuine users resulting in downtime.
One popular Denial of Service vulnerability is DDoS (a Distributed Denial of Service), an attack that attempts to clog network pipes to the system by generating a large volume of traffic from many machines.
When it comes to open source libraries, DoS vulnerabilities allow attackers to trigger such a crash or crippling of the service by using a flaw either in the application code or from the use of open source libraries.
Two common types of DoS vulnerabilities:
High CPU/Memory Consumption- An attacker sending crafted requests that could cause the system to take a disproportionate amount of time to process. For example, commons-fileupload:commons-fileupload.
Crash - An attacker sending crafted requests that could cause the system to crash. For Example, npm