Common Weakness Enumeration
CWE-400
DiscouragedUncontrolled Resource Consumption
Abstraction: Class · Status: Draft
The product does not properly control the allocation and maintenance of a limited resource.
5551 vulnerabilities reference this CWE, most recent first.
CVE-2020-36620 (GCVE-0-2020-36620)
Vulnerability from cvelistv5 – Published: 2022-12-21 00:00 – Updated: 2025-04-15 12:56
VLAI
EPSS
VEX
Title
Brondahl EnumStringValues EnumExtensions.cs GetStringValuesWithPreferences_Uncache resource consumption
Summary
A vulnerability was found in Brondahl EnumStringValues up to 4.0.0. It has been declared as problematic. This vulnerability affects the function GetStringValuesWithPreferences_Uncache of the file EnumStringValues/EnumExtensions.cs. The manipulation leads to resource consumption. Upgrading to version 4.0.1 is able to address this issue. The name of the patch is c0fc7806beb24883cc2f9543ebc50c0820297307. It is recommended to upgrade the affected component. VDB-216466 is the identifier assigned to this vulnerability.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-400 - Resource Consumption
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.216466 | technical-descriptionvdb-entry |
| https://github.com/Brondahl/EnumStringValues/comm… | mitigationpatch |
| https://github.com/Brondahl/EnumStringValues/rele… | mitigation |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Brondahl | EnumStringValues |
Affected:
4.0
|
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CVE-2020-36320 (GCVE-0-2020-36320)
Vulnerability from cvelistv5 – Published: 2021-04-23 16:05 – Updated: 2024-09-16 16:58
VLAI
EPSS
VEX
Title
Regular expression Denial of Service (ReDoS) in EmailValidator class in Vaadin 7
Summary
Unsafe validation RegEx in EmailValidator class in com.vaadin:vaadin-server versions 7.0.0 through 7.7.21 (Vaadin 7.0.0 through 7.7.21) allows attackers to cause uncontrolled resource consumption by submitting malicious email addresses.
Severity
7.5 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://vaadin.com/security/cve-2020-36320 | x_refsource_MISC |
| https://github.com/vaadin/framework/issues/7757 | x_refsource_MISC |
| https://github.com/vaadin/framework/pull/12104 | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Vaadin | Vaadin |
Affected:
7.0.0 , < *
(custom)
|
|
| Vaadin | vaadin-server |
Affected:
7.0.0 , < *
(custom)
|
Date Public
2020-10-08 00:00
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CVE-2020-35534 (GCVE-0-2020-35534)
Vulnerability from cvelistv5 – Published: 2022-09-01 17:54 – Updated: 2024-08-04 17:02
VLAI
EPSS
VEX
Summary
In LibRaw, there is a memory corruption vulnerability within the "crxFreeSubbandData()" function (libraw\src\decoders\crx.cpp) when processing cr3 files.
Severity
No CVSS data available.
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/LibRaw/LibRaw/issues/279 | x_refsource_MISC |
| https://github.com/LibRaw/LibRaw/commit/e41f331e9… | x_refsource_MISC |
Impacted products
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CVE-2020-35510 (GCVE-0-2020-35510)
Vulnerability from cvelistv5 – Published: 2021-06-02 13:22 – Updated: 2024-08-04 17:02
VLAI
EPSS
VEX
Summary
A flaw was found in jboss-remoting in versions before 5.0.20.SP1-redhat-00001. A malicious attacker could cause threads to hold up forever in the EJB server by writing a sequence of bytes corresponding to the expected messages of a successful EJB client request, but omitting the ACK messages, or just tamper with jboss-remoting code, deleting the lines that send the ACK message from the EJB client code resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Severity
No CVSS data available.
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1905796 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | jboss-remoting |
Affected:
jboss-remoting 5.0.20.SP1-redhat-00001
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CVE-2020-35498 (GCVE-0-2020-35498)
Vulnerability from cvelistv5 – Published: 2021-02-11 00:00 – Updated: 2025-04-23 19:46
VLAI
EPSS
VEX
Summary
A vulnerability was found in openvswitch. A limitation in the implementation of userspace packet parsing can allow a malicious user to send a specially crafted packet causing the resulting megaflow in the kernel to be too wide, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1908845 | |
| https://www.openwall.com/lists/oss-security/2021/… | |
| https://www.debian.org/security/2021/dsa-4852 | vendor-advisory |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-list |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://security.gentoo.org/glsa/202311-16 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | openvswitch |
Affected:
openvswitch 2.5.12, openvswitch 2.6.10, openvswitch 2.7.13, openvswitch 2.8.11, openvswitch 2.9.9, openvswitch 2.10.7, openvswitch 2.11.6, openvswitch 2.12.3, openvswitch 2.13.3, openvswitch 2.14.2
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CVE-2020-29490 (GCVE-0-2020-29490)
Vulnerability from cvelistv5 – Published: 2021-01-05 21:40 – Updated: 2024-09-16 19:19
VLAI
EPSS
VEX
Summary
Dell EMC Unity, Unity XT, and UnityVSA versions prior to 5.0.4.0.5.012 contain a Denial of Service vulnerability on NAS Servers with NFS exports. A remote authenticated attacker could potentially exploit this vulnerability and cause Denial of Service (Storage Processor Panic) by sending specially crafted UDP requests.
Severity
7.5 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.dell.com/support/kbdoc/000181248 | x_refsource_MISC |
Impacted products
Date Public
2020-12-17 00:00
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CVE-2020-27827 (GCVE-0-2020-27827)
Vulnerability from cvelistv5 – Published: 2021-03-18 00:00 – Updated: 2025-12-03 18:20
VLAI
EPSS
VEX
Summary
A flaw was found in multiple versions of OpenvSwitch. Specially crafted LLDP packets can cause memory to be lost when allocating data to handle specific optional TLVs, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
8 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | lldp/openvswitch |
Affected:
lldpd 1.0.8, openvswitch 2.14.1, openvswitch 2.13.2, openvswitch 2.12.2, openvswitch 2.11.5, openvswitch 2.10.6, openvswitch 2.9.8, openvswitch 2.8.10, openvswitch 2.7.12, openvswitch 2.6.9
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CVE-2020-27782 (GCVE-0-2020-27782)
Vulnerability from cvelistv5 – Published: 2021-02-23 18:35 – Updated: 2024-08-04 16:25
VLAI
EPSS
VEX
Summary
A flaw was found in the Undertow AJP connector. Malicious requests and abrupt connection closes could be triggered by an attacker using query strings with non-RFC compliant characters resulting in a denial of service. The highest threat from this vulnerability is to system availability. This affects Undertow 2.1.5.SP1, 2.0.33.SP2, and 2.2.3.SP1.
Severity
No CVSS data available.
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1901304 | x_refsource_MISC |
Impacted products
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CVE-2020-27295 (GCVE-0-2020-27295)
Vulnerability from cvelistv5 – Published: 2021-01-26 19:07 – Updated: 2024-08-04 16:11
VLAI
EPSS
VEX
Summary
The affected product has uncontrolled resource consumption issues, which may allow an attacker to cause a denial-of-service condition on the OPC UA Tunneller (versions prior to 6.3.0.8233).
Severity
No CVSS data available.
CWE
- CWE-400 - UNCONTROLLED RESOURCE CONSUMPTION CWE-400
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://us-cert.cisa.gov/ics/advisories/icsa-21-021-03 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | OPC UA Tunneller |
Affected:
All versions prior to 6.3.0.8233
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CVE-2020-26302 (GCVE-0-2020-26302)
Vulnerability from cvelistv5 – Published: 2022-12-23 23:03 – Updated: 2025-04-14 14:37
VLAI
EPSS
VEX
Summary
is.js is a general-purpose check library. Versions 0.9.0 and prior contain one or more regular expressions that are vulnerable to Regular Expression Denial of Service (ReDoS). is.js uses a regex copy-pasted from a gist to validate URLs. Trying to validate a malicious string can cause the regex to loop “forever." This vulnerability was found using a CodeQL query which identifies inefficient regular expressions. is.js has no patch for this issue.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| arasatasaygin | is.js |
Affected:
0.9.0 , ≤ 0.9.0
(custom)
|
Date Public
2022-12-22 00:00
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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.