CWE-400
DiscouragedUncontrolled Resource Consumption
Abstraction: Class · Status: Draft
The product does not properly control the allocation and maintenance of a limited resource.
5558 vulnerabilities reference this CWE, most recent first.
GHSA-658F-6M2Q-8572
Vulnerability from github – Published: 2026-06-17 18:35 – Updated: 2026-06-17 18:35Vulnerability in the MySQL Router product of Oracle MySQL (component: Router: General). Supported versions that are affected are 8.4.0-8.4.9 and 9.0.0-9.7.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via TLS to compromise MySQL Router. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Router. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
{
"affected": [],
"aliases": [
"CVE-2026-46862"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-17T10:54:03Z",
"severity": "HIGH"
},
"details": "Vulnerability in the MySQL Router product of Oracle MySQL (component: Router: General). Supported versions that are affected are 8.4.0-8.4.9 and 9.0.0-9.7.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via TLS to compromise MySQL Router. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Router. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).",
"id": "GHSA-658f-6m2q-8572",
"modified": "2026-06-17T18:35:32Z",
"published": "2026-06-17T18:35:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46862"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cspujun2026.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-65CC-QW75-2GW6
Vulnerability from github – Published: 2022-05-24 19:01 – Updated: 2022-05-24 19:01On versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.3, 14.1.x before 14.1.4, 13.1.x before 13.1.4, 12.1.x before 12.1.6, and 11.6.x before 11.6.5.3, when the BIG-IP system is buffering packet fragments for reassembly, the Traffic Management Microkernel (TMM) may consume an excessive amount of resources, eventually leading to a restart and failover event. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
{
"affected": [],
"aliases": [
"CVE-2021-23011"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-05-10T14:15:00Z",
"severity": "HIGH"
},
"details": "On versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.3, 14.1.x before 14.1.4, 13.1.x before 13.1.4, 12.1.x before 12.1.6, and 11.6.x before 11.6.5.3, when the BIG-IP system is buffering packet fragments for reassembly, the Traffic Management Microkernel (TMM) may consume an excessive amount of resources, eventually leading to a restart and failover event. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.",
"id": "GHSA-65cc-qw75-2gw6",
"modified": "2022-05-24T19:01:55Z",
"published": "2022-05-24T19:01:55Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-23011"
},
{
"type": "WEB",
"url": "https://support.f5.com/csp/article/K10751325"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-65F5-MFPF-VFHJ
Vulnerability from github – Published: 2023-01-18 18:19 – Updated: 2025-02-13 18:40There is a possible denial of service vulnerability in the Range header parsing component of Rack. This vulnerability has been assigned the CVE identifier CVE-2022-44570.
Versions Affected: >= 1.5.0 Not affected: None. Fixed Versions: 2.0.9.2, 2.1.4.2, 2.2.6.2, 3.0.0.1 Impact
Carefully crafted input can cause the Range header parsing component in Rack to take an unexpected amount of time, possibly resulting in a denial of service attack vector. Any applications that deal with Range requests (such as streaming applications, or applications that serve files) may be impacted. Releases
The fixed releases are available at the normal locations. Workarounds
There are no feasible workarounds for this issue. Patches
To aid users who aren’t able to upgrade immediately we have provided patches for the two supported release series. They are in git-am format and consist of a single changeset.
2-0-Fix-ReDoS-in-Rack-Utils.get_byte_ranges.patch - Patch for 2.0 series
2-1-Fix-ReDoS-in-Rack-Utils.get_byte_ranges.patch - Patch for 2.1 series
2-2-Fix-ReDoS-in-Rack-Utils.get_byte_ranges.patch - Patch for 2.2 series
3-0-Fix-ReDoS-in-Rack-Utils.get_byte_ranges.patch - Patch for 3.0 series
{
"affected": [
{
"package": {
"ecosystem": "RubyGems",
"name": "rack"
},
"ranges": [
{
"events": [
{
"introduced": "1.5.0"
},
{
"fixed": "2.0.9.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "RubyGems",
"name": "rack"
},
"ranges": [
{
"events": [
{
"introduced": "2.1.0.0"
},
{
"fixed": "2.1.4.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "RubyGems",
"name": "rack"
},
"ranges": [
{
"events": [
{
"introduced": "2.2.0.0"
},
{
"fixed": "2.2.6.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "RubyGems",
"name": "rack"
},
"ranges": [
{
"events": [
{
"introduced": "3.0.0.0"
},
{
"fixed": "3.0.4.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-44570"
],
"database_specific": {
"cwe_ids": [
"CWE-1333",
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2023-01-18T18:19:33Z",
"nvd_published_at": "2023-02-09T20:15:00Z",
"severity": "HIGH"
},
"details": "There is a possible denial of service vulnerability in the Range header parsing component of Rack. This vulnerability has been assigned the CVE identifier CVE-2022-44570.\n\nVersions Affected: \u003e= 1.5.0 Not affected: None. Fixed Versions: 2.0.9.2, 2.1.4.2, 2.2.6.2, 3.0.0.1\nImpact\n\nCarefully crafted input can cause the Range header parsing component in Rack to take an unexpected amount of time, possibly resulting in a denial of service attack vector. Any applications that deal with Range requests (such as streaming applications, or applications that serve files) may be impacted.\nReleases\n\nThe fixed releases are available at the normal locations.\nWorkarounds\n\nThere are no feasible workarounds for this issue.\nPatches\n\nTo aid users who aren\u2019t able to upgrade immediately we have provided patches for the two supported release series. They are in git-am format and consist of a single changeset.\n\n 2-0-Fix-ReDoS-in-Rack-Utils.get_byte_ranges.patch - Patch for 2.0 series\n 2-1-Fix-ReDoS-in-Rack-Utils.get_byte_ranges.patch - Patch for 2.1 series\n 2-2-Fix-ReDoS-in-Rack-Utils.get_byte_ranges.patch - Patch for 2.2 series\n 3-0-Fix-ReDoS-in-Rack-Utils.get_byte_ranges.patch - Patch for 3.0 series",
"id": "GHSA-65f5-mfpf-vfhj",
"modified": "2025-02-13T18:40:02Z",
"published": "2023-01-18T18:19:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-44570"
},
{
"type": "WEB",
"url": "https://discuss.rubyonrails.org/t/cve-2022-44570-possible-denial-of-service-vulnerability-in-racks-range-header-parsing/82125"
},
{
"type": "PACKAGE",
"url": "https://github.com/rack/rack"
},
{
"type": "WEB",
"url": "https://github.com/rack/rack/releases/tag/v3.0.4.1"
},
{
"type": "WEB",
"url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2022-44570.yml"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20231208-0010"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2023/dsa-5530"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Denial of service via header parsing in Rack"
}
GHSA-65H2-WF7M-Q2V8
Vulnerability from github – Published: 2023-09-27 15:30 – Updated: 2024-05-03 20:27A flaw was found in undertow. Servlets annotated with @MultipartConfig may cause an OutOfMemoryError due to large multipart content. This may allow unauthorized users to cause remote Denial of Service (DoS) attack. If the server uses fileSizeThreshold to limit the file size, it's possible to bypass the limit by setting the file name in the request to null.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "io.undertow:undertow-parent"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.2.24.Final"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-3223"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-789"
],
"github_reviewed": true,
"github_reviewed_at": "2023-09-27T20:16:42Z",
"nvd_published_at": "2023-09-27T15:18:56Z",
"severity": "HIGH"
},
"details": "A flaw was found in undertow. Servlets annotated with @MultipartConfig may cause an OutOfMemoryError due to large multipart content. This may allow unauthorized users to cause remote Denial of Service (DoS) attack. If the server uses fileSizeThreshold to limit the file size, it\u0027s possible to bypass the limit by setting the file name in the request to null.",
"id": "GHSA-65h2-wf7m-q2v8",
"modified": "2024-05-03T20:27:47Z",
"published": "2023-09-27T15:30:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3223"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2023:4505"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2023:4506"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2023:4507"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2023:4509"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2023:4918"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2023:4919"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2023:4920"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2023:4921"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2023:4924"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2023:7247"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2023-3223"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2209689"
},
{
"type": "PACKAGE",
"url": "https://github.com/undertow-io/undertow"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20231027-0004"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Undertow vulnerable to denial of service"
}
GHSA-65JC-PVP3-RXQ3
Vulnerability from github – Published: 2022-01-19 00:01 – Updated: 2022-01-26 00:03A denial of service vulnerability in GitLab CE/EE affecting all versions starting from 12.0 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, allows low-privileged users to bypass file size limits in the NPM package repository to potentially cause denial of service.
{
"affected": [],
"aliases": [
"CVE-2021-39942"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-01-18T17:15:00Z",
"severity": "MODERATE"
},
"details": "A denial of service vulnerability in GitLab CE/EE affecting all versions starting from 12.0 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, allows low-privileged users to bypass file size limits in the NPM package repository to potentially cause denial of service.",
"id": "GHSA-65jc-pvp3-rxq3",
"modified": "2022-01-26T00:03:22Z",
"published": "2022-01-19T00:01:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39942"
},
{
"type": "WEB",
"url": "https://hackerone.com/reports/1071861"
},
{
"type": "WEB",
"url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39942.json"
},
{
"type": "WEB",
"url": "https://gitlab.com/gitlab-org/gitlab/-/issues/297492"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-65P8-3HM4-H9H8
Vulnerability from github – Published: 2019-08-23 00:04 – Updated: 2021-08-17 21:23All versions of rgb2hex are vulnerable to Regular Expression Denial of Service (ReDoS) when an attacker can pass in a specially crafted invalid color value.
Recommendation
Update to version 0.1.6 or later.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "rgb2hex"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.1.6"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2019-08-22T14:26:35Z",
"nvd_published_at": null,
"severity": "MODERATE"
},
"details": "All versions of `rgb2hex` are vulnerable to Regular Expression Denial of Service (ReDoS) when an attacker can pass in a specially crafted invalid color value.\n\n\n## Recommendation\n\nUpdate to version 0.1.6 or later.",
"id": "GHSA-65p8-3hm4-h9h8",
"modified": "2021-08-17T21:23:49Z",
"published": "2019-08-23T00:04:48Z",
"references": [
{
"type": "WEB",
"url": "https://hackerone.com/reports/319629"
},
{
"type": "WEB",
"url": "https://github.com/christian-bromann/rgb2hex/blob/v0.1.0/index.js#L25"
},
{
"type": "WEB",
"url": "https://snyk.io/vuln/npm:rgb2hex:20180429"
},
{
"type": "WEB",
"url": "https://www.npmjs.com/advisories/647"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Denial of Service in rgb2hex"
}
GHSA-65V8-Q8G2-34XW
Vulnerability from github – Published: 2023-09-18 09:30 – Updated: 2024-04-04 07:42Certain WithSecure products allow a remote crash of a scanning engine via processing of a compressed file. This affects WithSecure Client Security 15, WithSecure Server Security 15, WithSecure Email and Server Security 15, WithSecure Elements Endpoint Protection 17 and later, WithSecure Client Security for Mac 15, WithSecure Elements Endpoint Protection for Mac 17 and later, Linux Security 64 12.0 , Linux Protection 12.0, and WithSecure Atlant (formerly F-Secure Atlant) 1.0.35-1.
{
"affected": [],
"aliases": [
"CVE-2023-42521"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-09-18T07:15:37Z",
"severity": "HIGH"
},
"details": "Certain WithSecure products allow a remote crash of a scanning engine via processing of a compressed file. This affects WithSecure Client Security 15, WithSecure Server Security 15, WithSecure Email and Server Security 15, WithSecure Elements Endpoint Protection 17 and later, WithSecure Client Security for Mac 15, WithSecure Elements Endpoint Protection for Mac 17 and later, Linux Security 64 12.0 , Linux Protection 12.0, and WithSecure Atlant (formerly F-Secure Atlant) 1.0.35-1.",
"id": "GHSA-65v8-q8g2-34xw",
"modified": "2024-04-04T07:42:59Z",
"published": "2023-09-18T09:30:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-42521"
},
{
"type": "WEB",
"url": "https://www.withsecure.com/en/support/security-advisories"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-65XW-VW82-R86X
Vulnerability from github – Published: 2026-03-29 15:19 – Updated: 2026-03-30 21:19Boolean expressions that evaluate to true can cause an infinite loop in logicalQuery.Select, leading to 100% CPU usage. This can be triggered by top-level selectors such as "1=1" or "true()".
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "github.com/antchfx/xpath"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.3.6"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-32287"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-835"
],
"github_reviewed": true,
"github_reviewed_at": "2026-03-29T15:19:45Z",
"nvd_published_at": "2026-03-26T20:16:12Z",
"severity": "HIGH"
},
"details": "Boolean expressions that evaluate to true can cause an infinite loop in logicalQuery.Select, leading to 100% CPU usage. This can be triggered by top-level selectors such as \"1=1\" or \"true()\".",
"id": "GHSA-65xw-vw82-r86x",
"modified": "2026-03-30T21:19:36Z",
"published": "2026-03-29T15:19:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32287"
},
{
"type": "WEB",
"url": "https://github.com/antchfx/xpath/issues/121"
},
{
"type": "WEB",
"url": "https://github.com/golang/vulndb/issues/4526"
},
{
"type": "WEB",
"url": "https://github.com/antchfx/xpath/commit/afd4762cc342af56345a3fb4002a59281fcab494"
},
{
"type": "PACKAGE",
"url": "https://github.com/antchfx/xpath"
},
{
"type": "WEB",
"url": "https://pkg.go.dev/vuln/GO-2026-4526"
},
{
"type": "WEB",
"url": "https://securityinfinity.com/research/infinite-loop-dos-in-antchfx-xpath-logicalquery-select"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "XPath: Boolean expression infinite loop leads to denial of service via CPU exhaustion"
}
GHSA-6627-XQ79-X5Q7
Vulnerability from github – Published: 2022-05-24 17:07 – Updated: 2022-05-24 17:07CODESYS Control V3, Gateway V3, and HMI V3 before 3.5.15.30 allow uncontrolled memory allocation which can result in a remote denial of service condition.
{
"affected": [],
"aliases": [
"CVE-2020-7052"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-01-24T20:15:00Z",
"severity": "MODERATE"
},
"details": "CODESYS Control V3, Gateway V3, and HMI V3 before 3.5.15.30 allow uncontrolled memory allocation which can result in a remote denial of service condition.",
"id": "GHSA-6627-xq79-x5q7",
"modified": "2022-05-24T17:07:19Z",
"published": "2022-05-24T17:07:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-7052"
},
{
"type": "WEB",
"url": "https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=12977\u0026token=33f948eed0c2fd69d238d9515779be337ef7592d\u0026download="
},
{
"type": "WEB",
"url": "https://www.tenable.com/security/research/tra-2020-04"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-662P-8MX9-XVC4
Vulnerability from github – Published: 2022-10-15 12:01 – Updated: 2022-10-18 19:00In sensor driver, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service in kernel.
{
"affected": [],
"aliases": [
"CVE-2022-39126"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-10-14T19:15:00Z",
"severity": "MODERATE"
},
"details": "In sensor driver, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service in kernel.",
"id": "GHSA-662p-8mx9-xvc4",
"modified": "2022-10-18T19:00:30Z",
"published": "2022-10-15T12:01:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-39126"
},
{
"type": "WEB",
"url": "https://www.unisoc.com/en_us/secy/announcementDetail/1575654905820020738"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
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
- 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
Ensure that protocols have specific limits of scale placed on them.
Mitigation
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.