linuxfoundation containerd CVE-2022-23648 vulnerability in Linux Foundation and Other Products
Published on March 3, 2022

Insecure handling of image volumes in containerd CRI plugin

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containerd is a container runtime available as a daemon for Linux and Windows. A bug was found in containerd prior to versions 1.6.1, 1.5.10, and 1.14.12 where containers launched through containerds CRI implementation on Linux with a specially-crafted image configuration could gain access to read-only copies of arbitrary files and directories on the host. This may bypass any policy-based enforcement on container setup (including a Kubernetes Pod Security Policy) and expose potentially sensitive information. Kubernetes and crictl can both be configured to use containerds CRI implementation. This bug has been fixed in containerd 1.6.1, 1.5.10, and 1.4.12. Users should update to these versions to resolve the issue.

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Vulnerability Analysis

CVE-2022-23648 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
NONE
Availability Impact:
NONE

Weakness Type

What is an Information Disclosure Vulnerability?

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

CVE-2022-23648 has been classified to as an Information Disclosure vulnerability or weakness.


Products Associated with CVE-2022-23648

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2022-23648 are published in these products:

Linux Foundation Containerd
 
Debian Linux
 
Fedora Project Fedora
 

Affected Versions

containerd:

Exploit Probability

EPSS
8.72%
Percentile
92.32%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.