CWE-400
DiscouragedUncontrolled Resource Consumption
Abstraction: Class · Status: Draft
The product does not properly control the allocation and maintenance of a limited resource.
5423 vulnerabilities reference this CWE, most recent first.
GHSA-H7V6-MC6C-M4W9
Vulnerability from github – Published: 2023-12-01 09:30 – Updated: 2023-12-08 18:30A vulnerability of Uncontrolled Resource Consumption has been identified in STARDOM provided by Yokogawa Electric Corporation. This vulnerability may allow to a remote attacker to cause a denial-of-service condition to the FCN/FCJ controller by sending a crafted packet. While sending the packet, the maintenance homepage of the controller could not be accessed. Therefore, functions of the maintenance homepage, changing configuration, viewing logs, etc. are not available. But the controller’s operation is not stopped by the condition.
The affected products and versions are as follows: STARDOM FCN/FCJ R1.01 to R4.31.
{
"affected": [],
"aliases": [
"CVE-2023-5915"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-12-01T07:15:12Z",
"severity": "MODERATE"
},
"details": "A vulnerability of Uncontrolled Resource Consumption has been identified in STARDOM provided by Yokogawa Electric Corporation.\u00a0This vulnerability may allow to a remote attacker to cause a denial-of-service condition to the FCN/FCJ controller by sending a crafted packet. While sending the packet, the maintenance homepage of the controller could not be accessed. Therefore, functions of the maintenance homepage, changing configuration, viewing logs, etc. are not available. But the controller\u2019s operation is not stopped by the condition.\n\nThe affected products and versions are as follows: STARDOM FCN/FCJ R1.01 to R4.31.\n",
"id": "GHSA-h7v6-mc6c-m4w9",
"modified": "2023-12-08T18:30:37Z",
"published": "2023-12-01T09:30:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-5915"
},
{
"type": "WEB",
"url": "https://jvn.jp/vu/JVNVU95177889/index.html"
},
{
"type": "WEB",
"url": "https://web-material3.yokogawa.com/1/35463/files/YSAR-23-0003-E.pdf"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-23-334-02"
}
],
"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:L",
"type": "CVSS_V3"
}
]
}
GHSA-H7WM-PH43-C39P
Vulnerability from github – Published: 2022-05-17 01:16 – Updated: 2026-05-20 22:25Scrapy 1.4 allows remote attackers to cause a denial of service (memory consumption) via large files because arbitrarily many files are read into memory, which is especially problematic if the files are then individually written in a separate thread to a slow storage resource, as demonstrated by interaction between dataReceived (in core/downloader/handlers/http11.py) and S3FilesStore.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "scrapy"
},
"ranges": [
{
"events": [
{
"introduced": "0.7"
},
{
"last_affected": "2.15.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2017-14158"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2022-06-17T21:35:13Z",
"nvd_published_at": "2017-09-05T17:29:00Z",
"severity": "HIGH"
},
"details": "Scrapy 1.4 allows remote attackers to cause a denial of service (memory consumption) via large files because arbitrarily many files are read into memory, which is especially problematic if the files are then individually written in a separate thread to a slow storage resource, as demonstrated by interaction between dataReceived (in core/downloader/handlers/http11.py) and S3FilesStore.",
"id": "GHSA-h7wm-ph43-c39p",
"modified": "2026-05-20T22:25:25Z",
"published": "2022-05-17T01:16:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-14158"
},
{
"type": "WEB",
"url": "https://github.com/scrapy/scrapy/issues/482"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/blob/8b7a4d62a95e8f605e5dfb4e0b4f299e6403dc12/vulns/scrapy/PYSEC-2017-83.yaml"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/scrapy/PYSEC-2017-83.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/scrapy/scrapy"
},
{
"type": "WEB",
"url": "http://blog.csdn.net/wangtua/article/details/75228728"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Scrapy denial of service vulnerability"
}
GHSA-H83R-V8Q3-3F6M
Vulnerability from github – Published: 2022-05-24 19:18 – Updated: 2022-10-27 19:00The 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.
{
"affected": [],
"aliases": [
"CVE-2021-38465"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-770"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-10-22T12:15:00Z",
"severity": "MODERATE"
},
"details": "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.",
"id": "GHSA-h83r-v8q3-3f6m",
"modified": "2022-10-27T19:00:31Z",
"published": "2022-05-24T19:18:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-38465"
},
{
"type": "WEB",
"url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-292-01"
}
],
"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"
}
]
}
GHSA-H89F-5H94-VMJ5
Vulnerability from github – Published: 2023-10-03 06:30 – Updated: 2024-04-04 08:03Transient DOS in WLAN Firmware while parsing a NAN management frame.
{
"affected": [],
"aliases": [
"CVE-2023-33026"
],
"database_specific": {
"cwe_ids": [
"CWE-126",
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-10-03T06:15:26Z",
"severity": "HIGH"
},
"details": "Transient DOS in WLAN Firmware while parsing a NAN management frame.",
"id": "GHSA-h89f-5h94-vmj5",
"modified": "2024-04-04T08:03:37Z",
"published": "2023-10-03T06:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-33026"
},
{
"type": "WEB",
"url": "https://www.qualcomm.com/company/product-security/bulletins/october-2023-bulletin"
}
],
"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-H89V-J3X9-8WQJ
Vulnerability from github – Published: 2026-02-18 00:52 – Updated: 2026-03-06 00:58Summary
Archive extraction lacked strict resource budgets, allowing high-expansion ZIP/TAR archives to consume excessive CPU/memory/disk during install/update flows.
Affected Packages / Versions
- openclaw (npm): <= 2026.2.13
- clawdbot (npm): <= 2026.1.24-3
Details
Affected component: src/infra/archive.ts (extractArchive).
The extractor now enforces resource budgets (entry count and extracted byte limits; ZIP also enforces a compressed archive size limit) and rejects over-budget archives.
Fix Commit(s)
- openclaw/openclaw@d3ee5deb87ee2ad0ab83c92c365611165423cb71
- openclaw/openclaw@5f4b29145c236d124524c2c9af0f8acd048fbdea
Release Process Note
This advisory will be updated with patched versions once the next npm release containing the fix is published.
Credits
Thanks @vincentkoc for reporting.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "openclaw"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2026.2.14"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "clawdbot"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2026.1.24-3"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-28452"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-770"
],
"github_reviewed": true,
"github_reviewed_at": "2026-02-18T00:52:54Z",
"nvd_published_at": "2026-03-05T22:16:17Z",
"severity": "MODERATE"
},
"details": "## Summary\nArchive extraction lacked strict resource budgets, allowing high-expansion ZIP/TAR archives to consume excessive CPU/memory/disk during install/update flows.\n\n## Affected Packages / Versions\n- openclaw (npm): \u003c= 2026.2.13\n- clawdbot (npm): \u003c= 2026.1.24-3\n\n## Details\nAffected component: `src/infra/archive.ts` (`extractArchive`).\n\nThe extractor now enforces resource budgets (entry count and extracted byte limits; ZIP also enforces a compressed archive size limit) and rejects over-budget archives.\n\n## Fix Commit(s)\n- openclaw/openclaw@d3ee5deb87ee2ad0ab83c92c365611165423cb71\n- openclaw/openclaw@5f4b29145c236d124524c2c9af0f8acd048fbdea\n\n## Release Process Note\nThis advisory will be updated with patched versions once the next npm release containing the fix is published.\n\n## Credits\nThanks @vincentkoc for reporting.",
"id": "GHSA-h89v-j3x9-8wqj",
"modified": "2026-03-06T00:58:53Z",
"published": "2026-02-18T00:52:54Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-h89v-j3x9-8wqj"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28452"
},
{
"type": "WEB",
"url": "https://github.com/openclaw/openclaw/commit/5f4b29145c236d124524c2c9af0f8acd048fbdea"
},
{
"type": "WEB",
"url": "https://github.com/openclaw/openclaw/commit/d3ee5deb87ee2ad0ab83c92c365611165423cb71"
},
{
"type": "PACKAGE",
"url": "https://github.com/openclaw/openclaw"
},
{
"type": "WEB",
"url": "https://github.com/openclaw/openclaw/releases/tag/v2026.2.14"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-unguarded-archive-extraction-in-extractarchive"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
],
"summary": "OpenClaw affected by denial of service through unguarded archive extraction allowing high expansion/resource abuse (ZIP/TAR)"
}
GHSA-H8G7-9RX9-625Q
Vulnerability from github – Published: 2022-02-02 00:01 – Updated: 2022-03-17 00:06MariaDB through 10.5.9 allows an application crash via certain long SELECT DISTINCT statements that improperly interact with storage-engine resource limitations for temporary data structures.
{
"affected": [],
"aliases": [
"CVE-2021-46668"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-02-01T02:15:00Z",
"severity": "HIGH"
},
"details": "MariaDB through 10.5.9 allows an application crash via certain long SELECT DISTINCT statements that improperly interact with storage-engine resource limitations for temporary data structures.",
"id": "GHSA-h8g7-9rx9-625q",
"modified": "2022-03-17T00:06:04Z",
"published": "2022-02-02T00:01:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-46668"
},
{
"type": "WEB",
"url": "https://jira.mariadb.org/browse/MDEV-25787"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DKJRBYJAQCOPHSED43A3HUPNKQLDTFGD"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EZFZVMJL5UDTOZMARLXQIMG3BTG6UNYW"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NJ4KDAGF3H4D4BDTHRAM6ZEAJJWWMRUO"
},
{
"type": "WEB",
"url": "https://mariadb.com/kb/en/security"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20220221-0002"
}
],
"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"
}
]
}
GHSA-H8GC-PGJ2-VJM3
Vulnerability from github – Published: 2023-11-03 06:36 – Updated: 2025-11-04 19:43In Django 3.2 before 3.2.22, 4.1 before 4.1.12, and 4.2 before 4.2.6, the django.utils.text.Truncator chars() and words() methods (when used with html=True) are subject to a potential DoS (denial of service) attack via certain inputs with very long, potentially malformed HTML text. The chars() and words() methods are used to implement the truncatechars_html and truncatewords_html template filters, which are thus also vulnerable. NOTE: this issue exists because of an incomplete fix for CVE-2019-14232.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "Django"
},
"ranges": [
{
"events": [
{
"introduced": "3.2a1"
},
{
"fixed": "3.2.22"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "Django"
},
"ranges": [
{
"events": [
{
"introduced": "4.1a1"
},
{
"fixed": "4.1.12"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "Django"
},
"ranges": [
{
"events": [
{
"introduced": "4.2a1"
},
{
"fixed": "4.2.6"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-43665"
],
"database_specific": {
"cwe_ids": [
"CWE-1284",
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2023-11-03T19:35:28Z",
"nvd_published_at": "2023-11-03T05:15:30Z",
"severity": "HIGH"
},
"details": "In Django 3.2 before 3.2.22, 4.1 before 4.1.12, and 4.2 before 4.2.6, the django.utils.text.Truncator chars() and words() methods (when used with html=True) are subject to a potential DoS (denial of service) attack via certain inputs with very long, potentially malformed HTML text. The chars() and words() methods are used to implement the truncatechars_html and truncatewords_html template filters, which are thus also vulnerable. NOTE: this issue exists because of an incomplete fix for CVE-2019-14232.",
"id": "GHSA-h8gc-pgj2-vjm3",
"modified": "2025-11-04T19:43:42Z",
"published": "2023-11-03T06:36:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-43665"
},
{
"type": "WEB",
"url": "https://github.com/django/django/commit/be9c27c4d18c2e6a5be8af4e53c0797440794473"
},
{
"type": "WEB",
"url": "https://github.com/django/django/commit/c7b7024742250414e426ad49fb80db943e7ba4e8"
},
{
"type": "WEB",
"url": "https://github.com/django/django/commit/ccdade1a0262537868d7ca64374de3d957ca50c5"
},
{
"type": "WEB",
"url": "https://docs.djangoproject.com/en/4.2/releases/security"
},
{
"type": "PACKAGE",
"url": "https://github.com/django/django"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2023-226.yaml"
},
{
"type": "WEB",
"url": "https://groups.google.com/forum/#!forum/django-announce"
},
{
"type": "WEB",
"url": "https://groups.google.com/forum/#%21forum/django-announce"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HJFRPUHDYJHBH3KYHSPGULQM4JN7BMSU"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZQJOMNRMVPCN5WMIZ7YSX5LQ7IR2NY4D"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HJFRPUHDYJHBH3KYHSPGULQM4JN7BMSU"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZQJOMNRMVPCN5WMIZ7YSX5LQ7IR2NY4D"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20231221-0001"
},
{
"type": "WEB",
"url": "https://www.djangoproject.com/weblog/2023/oct/04/security-releases"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2024/03/04/1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Django Denial-of-service in django.utils.text.Truncator"
}
GHSA-H8R6-V22M-3QFH
Vulnerability from github – Published: 2022-05-13 01:11 – Updated: 2022-05-13 01:11In OpenJPEG 2.3.0, there is excessive iteration in the opj_t1_encode_cblks function of openjp2/t1.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted bmp file.
{
"affected": [],
"aliases": [
"CVE-2018-6616"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-02-04T22:29:00Z",
"severity": "MODERATE"
},
"details": "In OpenJPEG 2.3.0, there is excessive iteration in the opj_t1_encode_cblks function of openjp2/t1.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted bmp file.",
"id": "GHSA-h8r6-v22m-3qfh",
"modified": "2022-05-13T01:11:47Z",
"published": "2022-05-13T01:11:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-6616"
},
{
"type": "WEB",
"url": "https://github.com/uclouvain/openjpeg/issues/1059"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2018/12/msg00013.html"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4109-1"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2019/dsa-4405"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujul2020.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-H8WW-M8W3-8W9C
Vulnerability from github – Published: 2025-05-13 21:30 – Updated: 2025-05-13 21:30Uncontrolled resource consumption for some OpenVINO™ model server software maintained by Intel(R) before version 2024.4 may allow an unauthenticated user to potentially enable denial of service via adjacent access.
{
"affected": [],
"aliases": [
"CVE-2025-22892"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-13T21:16:10Z",
"severity": "HIGH"
},
"details": "Uncontrolled resource consumption for some OpenVINO\u2122 model server software maintained by Intel(R) before version 2024.4 may allow an unauthenticated user to potentially enable denial of service via adjacent access.",
"id": "GHSA-h8ww-m8w3-8w9c",
"modified": "2025-05-13T21:30:57Z",
"published": "2025-05-13T21:30:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-22892"
},
{
"type": "WEB",
"url": "https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01272.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-H8X7-V99M-G63R
Vulnerability from github – Published: 2021-12-16 00:01 – Updated: 2022-07-13 00:01In getOffsetBeforeAfter of TextLine.java, there is a possible denial of service due to resource exhaustion. This could lead to remote denial of service with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-193849901
{
"affected": [],
"aliases": [
"CVE-2021-0993"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-12-15T19:15:00Z",
"severity": "MODERATE"
},
"details": "In getOffsetBeforeAfter of TextLine.java, there is a possible denial of service due to resource exhaustion. This could lead to remote denial of service with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-193849901",
"id": "GHSA-h8x7-v99m-g63r",
"modified": "2022-07-13T00:01:00Z",
"published": "2021-12-16T00:01:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-0993"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/pixel/2021-12-01"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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.