Common Weakness Enumeration

CWE-400

Discouraged

Uncontrolled Resource Consumption

Abstraction: Class · Status: Draft

API response cwe.mitre.org

The product does not properly control the allocation and maintenance of a limited resource.

5475 vulnerabilities reference this CWE, most recent first.

CVE-2020-25673 (GCVE-0-2020-25673)

Vulnerability from cvelistv5 – Published: 2021-05-26 10:55 – Updated: 2024-08-04 15:40
VLAI
Summary
A vulnerability was found in Linux kernel where non-blocking socket in llcp_sock_connect() leads to leak and eventually hanging-up the system.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a Linux Kernel Affected: All
Show details on NVD website
To clipboard 

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CVE-2020-25630 (GCVE-0-2020-25630)

Vulnerability from cvelistv5 – Published: 2020-12-08 00:13 – Updated: 2024-08-04 15:40
VLAI
Summary
A vulnerability was found in Moodle where the decompressed size of zip files was not checked against available user quota before unzipping them, which could lead to a denial of service risk. This affects versions 3.9 to 3.9.1, 3.8 to 3.8.4, 3.7 to 3.7.7, 3.5 to 3.5.13 and earlier unsupported versions. Fixed in 3.9.2, 3.8.5, 3.7.8 and 3.5.14.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a Moodle Affected: 3.9 to 3.9.1
Affected: 3.8 to 3.8.4
Affected: 3.7 to 3.7.7
Affected: 3.5 to 3.5.13
Affected: earlier unsupported versions
Show details on NVD website
To clipboard 

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CVE-2020-25242 (GCVE-0-2020-25242)

Vulnerability from cvelistv5 – Published: 2021-05-12 13:18 – Updated: 2024-08-04 15:33
VLAI
Summary
A vulnerability has been identified in SIMATIC NET CP 343-1 Advanced (incl. SIPLUS variants) (All versions), SIMATIC NET CP 343-1 Lean (incl. SIPLUS variants) (All versions), SIMATIC NET CP 343-1 Standard (incl. SIPLUS variants) (All versions). Specially crafted packets sent to TCP port 102 could cause a Denial-of-Service condition on the affected devices. A cold restart might be necessary in order to recover.
Severity
No CVSS data available.
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2020-24686 (GCVE-0-2020-24686)

Vulnerability from cvelistv5 – Published: 2021-02-26 15:10 – Updated: 2024-08-04 15:19
VLAI
Title
AC500 V2 webserver denial of service vulnerability
Summary
The vulnerabilities can be exploited to cause the web visualization component of the PLC to stop and not respond, leading to genuine users losing remote visibility of the PLC state. If a user attempts to login to the PLC while this vulnerability is exploited, the PLC will show an error state and refuse connections to Automation Builder. The execution of the PLC application is not affected by this vulnerability. This issue affects ABB AC500 V2 products with onboard Ethernet.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
ABB
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2020-15853 (GCVE-0-2020-15853)

Vulnerability from cvelistv5 – Published: 2022-10-18 00:00 – Updated: 2025-05-13 15:03
VLAI
Summary
supybot-fedora implements the command 'refresh', that refreshes the cache of all users from FAS. This takes quite a while to run, and zodbot stops responding to requests during this time.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a supybot-fedora Affected: all versions
Show details on NVD website
To clipboard 

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CVE-2020-15783 (GCVE-0-2020-15783)

Vulnerability from cvelistv5 – Published: 2020-11-12 19:21 – Updated: 2026-06-02 18:37
VLAI
Summary
A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC TDC CPU555 (All versions), SINUMERIK 840D sl (All versions). Sending multiple specially crafted packets to the affected devices could cause a Denial-of-Service on port 102. A cold restart is required to recover the service.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2020-15166 (GCVE-0-2020-15166)

Vulnerability from cvelistv5 – Published: 2020-09-11 15:35 – Updated: 2024-08-04 13:08
VLAI
Title
Denial of Service in ZeroMQ
Summary
In ZeroMQ before version 4.3.3, there is a denial-of-service vulnerability. Users with TCP transport public endpoints, even with CURVE/ZAP enabled, are impacted. If a raw TCP socket is opened and connected to an endpoint that is fully configured with CURVE/ZAP, legitimate clients will not be able to exchange any message. Handshakes complete successfully, and messages are delivered to the library, but the server application never receives them. This is patched in version 4.3.3.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
Vendor Product Version
zeromq libzmq Affected: < 4.3.3
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2020-15114 (GCVE-0-2020-15114)

Vulnerability from cvelistv5 – Published: 2020-08-06 22:25 – Updated: 2024-08-04 13:08
VLAI
Title
Denial of Service in etcd
Summary
In etcd before versions 3.3.23 and 3.4.10, the etcd gateway is a simple TCP proxy to allow for basic service discovery and access. However, it is possible to include the gateway address as an endpoint. This results in a denial of service, since the endpoint can become stuck in a loop of requesting itself until there are no more available file descriptors to accept connections on the gateway.
Severity
7.7 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CWE
  • CWE-400 - {"CWE-400":"Uncontrolled Resource Consumption"}
Assigner
References
Impacted products
Vendor Product Version
etcd-io etcd Affected: < 3.3.23
Affected: < 3.4.10
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2020-15101 (GCVE-0-2020-15101)

Vulnerability from cvelistv5 – Published: 2020-07-14 21:35 – Updated: 2024-08-04 13:08
VLAI
Title
Nested directory structure can lead to Uncontrolled Resource Consumption in freewvs
Summary
In freewvs before 0.1.1, a directory structure of more than 1000 nested directories can interrupt a freewvs scan due to Python's recursion limit and os.walk(). This can be problematic in a case where an administrator scans the dirs of potentially untrusted users. This has been patched in 0.1.1.
Severity
2.8 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
Vendor Product Version
schokokeksorg freewvs Affected: < 0.1.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2020-15100 (GCVE-0-2020-15100)

Vulnerability from cvelistv5 – Published: 2020-07-14 19:15 – Updated: 2024-08-04 13:08
VLAI
Title
Uncontrolled Resource Consumption in freewvs
Summary
In freewvs before 0.1.1, a user could create a large file that freewvs will try to read, which will terminate a scan process. This has been patched in 0.1.1.
Severity
2.8 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
Vendor Product Version
schokokeksorg freewvs Affected: < 0.1.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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Mitigation
Architecture and Design

Design throttling mechanisms into the system architecture. The best protection is to limit the amount of resources that an unauthorized user can cause to be expended. A strong authentication and access control model will help prevent such attacks from occurring in the first place. The login application should be protected against DoS attacks as much as possible. Limiting the database access, perhaps by caching result sets, can help minimize the resources expended. To further limit the potential for a DoS attack, consider tracking the rate of requests received from users and blocking requests that exceed a defined rate threshold.

Mitigation
Architecture and Design
  • Mitigation of resource exhaustion attacks requires that the target system either:
  • The first of these solutions is an issue in itself though, since it may allow attackers to prevent the use of the system by a particular valid user. If the attacker impersonates the valid user, they may be able to prevent the user from accessing the server in question.
  • The second solution is simply difficult to effectively institute -- and even when properly done, it does not provide a full solution. It simply makes the attack require more resources on the part of the attacker.
  • recognizes the attack and denies that user further access for a given amount of time, or
  • uniformly throttles all requests in order to make it more difficult to consume resources more quickly than they can again be freed.
Mitigation
Architecture and Design

Ensure that protocols have specific limits of scale placed on them.

Mitigation
Implementation

Ensure that all failures in resource allocation place the system into a safe posture.

CAPEC-147: XML Ping of the Death

An attacker initiates a resource depletion attack where a large number of small XML messages are delivered at a sufficiently rapid rate to cause a denial of service or crash of the target. Transactions such as repetitive SOAP transactions can deplete resources faster than a simple flooding attack because of the additional resources used by the SOAP protocol and the resources necessary to process SOAP messages. The transactions used are immaterial as long as they cause resource utilization on the target. In other words, this is a normal flooding attack augmented by using messages that will require extra processing on the target.

CAPEC-227: Sustained Client Engagement

An adversary attempts to deny legitimate users access to a resource by continually engaging a specific resource in an attempt to keep the resource tied up as long as possible. The adversary's primary goal is not to crash or flood the target, which would alert defenders; rather it is to repeatedly perform actions or abuse algorithmic flaws such that a given resource is tied up and not available to a legitimate user. By carefully crafting a requests that keep the resource engaged through what is seemingly benign requests, legitimate users are limited or completely denied access to the resource.

CAPEC-492: Regular Expression Exponential Blowup

An adversary may execute an attack on a program that uses a poor Regular Expression(Regex) implementation by choosing input that results in an extreme situation for the Regex. A typical extreme situation operates at exponential time compared to the input size. This is due to most implementations using a Nondeterministic Finite Automaton(NFA) state machine to be built by the Regex algorithm since NFA allows backtracking and thus more complex regular expressions.

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