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.
5567 vulnerabilities reference this CWE, most recent first.
CVE-2021-41115 (GCVE-0-2021-41115)
Vulnerability from cvelistv5 – Published: 2021-10-07 22:20 – Updated: 2024-08-04 02:59
VLAI
EPSS
VEX
Title
Regular expression denial-of-service in Zulip
Summary
Zulip is an open source team chat server. In affected versions Zulip allows organization administrators on a server to configure "linkifiers" that automatically create links from messages that users send, detected via arbitrary regular expressions. Malicious organization administrators could subject the server to a denial-of-service via regular expression complexity attacks; most simply, by configuring a quadratic-time regular expression in a linkifier, and sending messages that exploited it. A regular expression attempted to parse the user-provided regexes to verify that they were safe from ReDoS -- this was both insufficient, as well as _itself_ subject to ReDoS if the organization administrator entered a sufficiently complex invalid regex. Affected users should [upgrade to the just-released Zulip 4.7](https://zulip.readthedocs.io/en/latest/production/upgrade-or-modify.html#upgrading-to-a-release), or [`main`](https://zulip.readthedocs.io/en/latest/production/upgrade-or-modify.html#upgrading-from-a-git-repository).
Severity
4.3 (Medium)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/zulip/zulip/security/advisorie… | x_refsource_CONFIRM |
| https://github.com/zulip/zulip/commit/e2d303c1bb5… | x_refsource_MISC |
| https://securitylab.github.com/advisories/GHSL-20… | x_refsource_MISC |
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CVE-2021-40406 (GCVE-0-2021-40406)
Vulnerability from cvelistv5 – Published: 2022-01-28 19:10 – Updated: 2025-04-15 19:21
VLAI
EPSS
VEX
Summary
A denial of service vulnerability exists in the cgiserver.cgi session creation functionality of reolink RLC-410W v3.0.0.136_20121102. A specially-crafted HTTP request can lead to prevent users from logging in. An attacker can send an HTTP request to trigger this vulnerability.
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
1 reference
| URL | Tags |
|---|---|
| https://talosintelligence.com/vulnerability_repor… | x_refsource_MISC |
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CVE-2021-39229 (GCVE-0-2021-39229)
Vulnerability from cvelistv5 – Published: 2021-09-20 21:20 – Updated: 2024-08-04 01:58
VLAI
EPSS
VEX
Title
Regular expression deinal of service in apprise
Summary
Apprise is an open source library which allows you to send a notification to almost all of the most popular notification services available. In affected versions users who use Apprise granting them access to the IFTTT plugin (which just comes out of the box) are subject to a denial of service attack on an inefficient regular expression. The vulnerable regular expression is [here](https://github.com/caronc/apprise/blob/0007eade20934ddef0aba38b8f1aad980cfff253/apprise/plugins/NotifyIFTTT.py#L356-L359). The problem has been patched in release version 0.9.5.1. Users who are unable to upgrade are advised to remove `apprise/plugins/NotifyIFTTT.py` to eliminate the service.
Severity
7.5 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/caronc/apprise/security/adviso… | x_refsource_CONFIRM |
| https://github.com/caronc/apprise/pull/436 | x_refsource_MISC |
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CVE-2021-39171 (GCVE-0-2021-39171)
Vulnerability from cvelistv5 – Published: 2021-08-27 22:05 – Updated: 2024-08-04 01:58
VLAI
EPSS
VEX
Title
Unlimited transforms allowed for signed nodes
Summary
Passport-SAML is a SAML 2.0 authentication provider for Passport, the Node.js authentication library. Prior to version 3.1.0, a malicious SAML payload can require transforms that consume significant system resources to process, thereby resulting in reduced or denied service. This would be an effective way to perform a denial-of-service attack. This has been resolved in version 3.1.0. The resolution is to limit the number of allowable transforms to 2.
Severity
5.3 (Medium)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/node-saml/passport-saml/securi… | x_refsource_CONFIRM |
| https://github.com/node-saml/passport-saml/pull/595 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| node-saml | passport-saml |
Affected:
< 3.1.0
|
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CVE-2021-38465 (GCVE-0-2021-38465)
Vulnerability from cvelistv5 – Published: 2021-10-22 11:23 – Updated: 2024-09-16 19:04
VLAI
EPSS
VEX
Title
AUVESY Versiondog
Summary
The webinstaller is a Golang web server executable that enables the generation of an Auvesy image agent. Resource consumption can be achieved by generating large amounts of installations, which are then saved without limitation in the temp folder of the webinstaller executable.
Severity
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://us-cert.cisa.gov/ics/advisories/icsa-21-292-01 | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| AUVESY | Versiondog |
Affected:
All , ≤ 8.0
(custom)
|
Date Public
2021-08-19 00:00
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CVE-2021-38463 (GCVE-0-2021-38463)
Vulnerability from cvelistv5 – Published: 2021-10-22 11:23 – Updated: 2024-09-17 03:38
VLAI
EPSS
VEX
Title
AUVESY Versiondog
Summary
The affected product does not properly control the allocation of resources. A user may be able to allocate unlimited memory buffers using API functions.
Severity
7.3 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://us-cert.cisa.gov/ics/advisories/icsa-21-292-01 | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| AUVESY | Versiondog |
Affected:
All , ≤ 8.0
(custom)
|
Date Public
2021-08-19 00:00
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CVE-2021-37865 (GCVE-0-2021-37865)
Vulnerability from cvelistv5 – Published: 2022-01-18 16:51 – Updated: 2024-12-06 23:11
VLAI
EPSS
VEX
Title
Server-side Denial of Service while processing a specifically crafted GIF file
Summary
Mattermost 6.2 and earlier fails to sufficiently process a specifically crafted GIF file when it is uploaded while drafting a post, which allows authenticated users to cause resource exhaustion while processing the file, resulting in server-side Denial of Service.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://mattermost.com/security-updates/ | x_refsource_MISC |
| https://hackerone.com/reports/1428260 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Mattermost | Mattermost |
Affected:
unspecified , ≤ 6.2
(custom)
Unaffected: 6.1.1 , < unspecified (custom) Unaffected: 6.0.4 , < unspecified (custom) Unaffected: 5.39.3 , < unspecified (custom) Unaffected: 5.37.6 , < unspecified (custom) |
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CVE-2021-37137 (GCVE-0-2021-37137)
Vulnerability from cvelistv5 – Published: 2021-10-19 00:00 – Updated: 2024-08-04 01:16
VLAI
EPSS
VEX
Summary
The Snappy frame decoder function doesn't restrict the chunk length which may lead to excessive memory usage. Beside this it also may buffer reserved skippable chunks until the whole chunk was received which may lead to excessive memory usage as well. This vulnerability can be triggered by supplying malicious input that decompresses to a very big size (via a network stream or a file) or by sending a huge skippable chunk.
Severity
No CVSS data available.
CWE
Assigner
References
13 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Netty project | Netty |
Affected:
unspecified , < 4.1.68Final
(custom)
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CVE-2021-37136 (GCVE-0-2021-37136)
Vulnerability from cvelistv5 – Published: 2021-10-19 00:00 – Updated: 2024-08-04 01:16
VLAI
EPSS
VEX
Summary
The Bzip2 decompression decoder function doesn't allow setting size restrictions on the decompressed output data (which affects the allocation size used during decompression). All users of Bzip2Decoder are affected. The malicious input can trigger an OOME and so a DoS attack
Severity
No CVSS data available.
CWE
Assigner
References
13 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Netty project | Netty |
Affected:
unspecified , < 4.1.68Final
(custom)
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{
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{
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"datePublished": "2021-10-19T00:00:00.000Z",
"dateReserved": "2021-07-20T00:00:00.000Z",
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CVE-2021-36395 (GCVE-0-2021-36395)
Vulnerability from cvelistv5 – Published: 2023-03-06 00:00 – Updated: 2025-03-07 19:09
VLAI
EPSS
VEX
Summary
In Moodle, the file repository's URL parsing required additional recursion handling to mitigate the risk of recursion denial of service.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
1 reference
Impacted products
{
"containers": {
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"dateUpdated": "2024-08-04T00:54:51.521Z",
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"references": [
{
"tags": [
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"url": "https://moodle.org/mod/forum/discuss.php?d=424801"
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"title": "CVE Program Container"
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{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"problemTypes": [
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"descriptions": [
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"cweId": "CWE-674",
"description": "CWE-674 Uncontrolled Recursion",
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"title": "CISA ADP Vulnrichment"
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],
"cna": {
"affected": [
{
"product": "Moodle",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "3.11, 3.10 to 3.10.4, 3.9 to 3.9.7 and earlier unsupported versions"
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"lang": "en",
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"url": "https://moodle.org/mod/forum/discuss.php?d=424801"
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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.