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Containerd CVE-2022-23471

MEDIUM
Uncontrolled Resource Consumption (CWE-400)
2022-12-07 security-advisories@github.com
6.5
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V2 - Validation and Business Logic Resource consumption limits
MITRE ATT&CK

1 technique across 1 tactic: Impact

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 6.5 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required.

Exploit ScenarioDerived

A remote attacker could cause denial of service by exhausting system resources by sending crafted requests to the affected application.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 1.0% exploitation probability (EPSS)

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AnalysisAI

containerd is an open source container runtime. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. This Uncontrolled Resource Consumption vulnerability could allow attackers to cause denial of service by exhausting system resources.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Implement rate limiting, set resource quotas, validate input sizes, use timeouts.

Affected Packages

go github.com/containerd/containerd fix: 1.5.16, 1.6.12

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in go

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Uncontrolled Resource Consumption (CWE-400), which allows attackers to cause denial of service by exhausting system resources. containerd is an open source container runtime. A bug was found in containerd's CRI implementation where a user can exhaust memory on the host. In the CRI stream server, a goroutine is launched to handle terminal resize events if a TTY is requested. If the user's process fails to launch due to, for example, a faulty command, the goroutine will be stuck waiting to send without a receiver, resulting in a memory leak. Kubernetes and crictl can both be configured to use containerd's CRI implementation and the stream server is used for handling container IO. This bug has been fixed in containerd 1.6.12 and 1.5.16. Users should update to these versions to resolve the issue. Users unable to upgrade should ensure that only trusted images and commands are used and that only trusted users have permissions to execute commands in running containers. Affected products include: Linuxfoundation Containerd.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.5 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

DescriptionNVD

containerd is an open source container runtime. A bug was found in containerd's CRI implementation where a user can exhaust memory on the host. In the CRI stream server, a goroutine is launched to handle terminal resize events if a TTY is requested. If the user's process fails to launch due to, for example, a faulty command, the goroutine will be stuck waiting to send without a receiver, resulting in a memory leak. Kubernetes and crictl can both be configured to use containerd's CRI implementation and the stream server is used for handling container IO. This bug has been fixed in containerd 1.6.12 and 1.5.16. Users should update to these versions to resolve the issue. Users unable to upgrade should ensure that only trusted images and commands are used and that only trusted users have permissions to execute commands in running containers.

Threat Intelligence Overview

EPSS Score
1.0%
Top 41% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 1.0%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

33
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)NVD

cpe:2.3:a:linuxfoundation:containerd:*:*:*:*:*:*:*:*
cpe:2.3:a:linuxfoundation:containerd:*:*:*:*:*:*:*:*
CVE-2023-25173 HIGH POC
7.8 Feb 16

containerd is an open source container runtime. Rated high severity (CVSS 7.8), this vulnerability is low attack complex

CVE-2022-23648 HIGH POC
7.5 Mar 03

containerd is a container runtime available as a daemon for Linux and Windows. Rated high severity (CVSS 7.5), this vuln

CVE-2026-53493 MEDIUM POC
6.9 Sep 25

Denial of service in containerd versions prior to 1.7.36, 2.0.13, 2.2.9, 2.3.6, and 2.4.1 allows an unauthenticated atta

CVE-2026-53488 CRITICAL
9.4 Jun 19

Host command execution in containerd's CRI plugin arises because labels from an image config (Dockerfile LABEL instructi

CVE-2026-47218 CRITICAL
9.3 Oct 15

Native code execution inside the shim zygote process is possible in runwasi's containerd-shim-wasmtime-v1 prior to 0.6.1

CVE-2026-53492 HIGH
8.4 Jun 19

Kubernetes device-plugin and resource-allocation enforcement can be bypassed in containerd by a namespace user holding p

CVE-2026-53489 HIGH
8.2 Jun 19

Arbitrary host file disclosure in containerd's CRI plugin lets an attacker read any file on the Kubernetes node via `kub

CVE-2026-95837 HIGH
7.8 Oct 12

Privilege escalation in containerd's CRI checkpoint-restore path allows an authenticated local attacker who can submit a

CVE-2021-41103 HIGH
7.8 Oct 04

containerd is an open source container runtime with an emphasis on simplicity, robustness and portability. Rated high se

CVE-2026-107446 MEDIUM
6.8 Oct 08

Integer overflow in containerd overlaybd's LSMT index loader (do_load_index) lets a crafted, untrusted overlaybd blob pu

CVE-2021-32760 MEDIUM
6.3 Jul 19

containerd is a container runtime. Rated medium severity (CVSS 6.3), this vulnerability is remotely exploitable, no auth

CVE-2021-21334 MEDIUM
6.3 Mar 10

In containerd (an industry-standard container runtime) before versions 1.3.10 and 1.4.4, containers launched through con

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