CWE-400
DiscouragedUncontrolled Resource Consumption
Abstraction: Class · Status: Draft
The product does not properly control the allocation and maintenance of a limited resource.
5521 vulnerabilities reference this CWE, most recent first.
GHSA-487G-3M3V-HJHQ
Vulnerability from github – Published: 2024-02-19 18:31 – Updated: 2024-02-29 03:33Insufficient file size checks resulted in a denial of service risk in the file picker's unzip functionality.
{
"affected": [
{
"package": {
"ecosystem": "Packagist",
"name": "moodle/moodle"
},
"ranges": [
{
"events": [
{
"introduced": "4.3.0"
},
{
"fixed": "4.3.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Packagist",
"name": "moodle/moodle"
},
"ranges": [
{
"events": [
{
"introduced": "4.2.0"
},
{
"fixed": "4.2.6"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Packagist",
"name": "moodle/moodle"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.1.9"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2024-25978"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-770"
],
"github_reviewed": true,
"github_reviewed_at": "2024-02-21T00:08:30Z",
"nvd_published_at": "2024-02-19T17:15:08Z",
"severity": "HIGH"
},
"details": "Insufficient file size checks resulted in a denial of service risk in the file picker\u0027s unzip functionality.",
"id": "GHSA-487g-3m3v-hjhq",
"modified": "2024-02-29T03:33:05Z",
"published": "2024-02-19T18:31:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-25978"
},
{
"type": "WEB",
"url": "https://github.com/moodle/moodle/commit/9ba14233597480fb78c04d531050c090de4e60a2"
},
{
"type": "WEB",
"url": "https://github.com/moodle/moodle/commit/a73e0ac76d77b67602f91bb211962813d60bc573"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2264074"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KXGBYJ43BUEBUAQZU3DT5I5A3YLF47CB"
},
{
"type": "WEB",
"url": "https://moodle.org/mod/forum/discuss.php?d=455634"
},
{
"type": "WEB",
"url": "http://git.moodle.org/gw?p=moodle.git\u0026a=search\u0026h=HEAD\u0026st=commit\u0026s=MDL-74641"
}
],
"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": "Uncontrolled Resource Consumption in moodle"
}
GHSA-488G-HW5F-X29P
Vulnerability from github – Published: 2026-02-02 12:31 – Updated: 2026-02-02 22:04The SimpleDirectoryReader component in llama_index.core version 0.12.23 suffers from uncontrolled memory consumption due to a resource management flaw. The vulnerability arises because the user-specified file limit (num_files_limit) is applied after all files in a directory are loaded into memory. This can lead to memory exhaustion and degraded performance, particularly in environments with limited resources. The issue is resolved in version 0.12.41.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "llama-index-core"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.12.41"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-6208"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2026-02-02T22:04:45Z",
"nvd_published_at": "2026-02-02T11:16:17Z",
"severity": "MODERATE"
},
"details": "The `SimpleDirectoryReader` component in `llama_index.core` version 0.12.23 suffers from uncontrolled memory consumption due to a resource management flaw. The vulnerability arises because the user-specified file limit (`num_files_limit`) is applied after all files in a directory are loaded into memory. This can lead to memory exhaustion and degraded performance, particularly in environments with limited resources. The issue is resolved in version 0.12.41.",
"id": "GHSA-488g-hw5f-x29p",
"modified": "2026-02-02T22:04:45Z",
"published": "2026-02-02T12:31:14Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-6208"
},
{
"type": "WEB",
"url": "https://github.com/run-llama/llama_index/commit/53614e2f7913c0e86b58add9470b3c900b6c60b2"
},
{
"type": "PACKAGE",
"url": "https://github.com/run-llama/llama_index"
},
{
"type": "WEB",
"url": "https://huntr.com/bounties/7d722bb6-6567-4608-8b23-f95048d7605a"
}
],
"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:L",
"type": "CVSS_V3"
}
],
"summary": "llama-index-core vulnerable to Uncontrolled Resource Consumption"
}
GHSA-48FJ-RPWG-8HJQ
Vulnerability from github – Published: 2026-01-20 15:33 – Updated: 2026-02-02 18:31A security issue exists within ArmorStart® LT that can result in a denial-of-service condition. During execution of the Achilles EtherNet/IP and CIP grammar tests, the device reboots unexpectedly, causing the Link State Monitor to go down for several seconds.
{
"affected": [],
"aliases": [
"CVE-2025-9466"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-20T14:16:17Z",
"severity": "HIGH"
},
"details": "A security issue exists within ArmorStart\u00ae LT that can result in a denial-of-service condition. During execution of the Achilles EtherNet/IP and CIP grammar tests, the device reboots unexpectedly, causing the Link State Monitor to go down for several seconds.",
"id": "GHSA-48fj-rpwg-8hjq",
"modified": "2026-02-02T18:31:31Z",
"published": "2026-01-20T15:33:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-9466"
},
{
"type": "WEB",
"url": "https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1768.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"
},
{
"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/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-48G8-MW8P-W6J7
Vulnerability from github – Published: 2026-05-26 18:31 – Updated: 2026-05-26 18:31IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service in configurations where an attacker has write access to parts of the server configuration.
{
"affected": [],
"aliases": [
"CVE-2026-8856"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-26T18:16:57Z",
"severity": "HIGH"
},
"details": "IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service in configurations where an attacker has write access to parts of the server configuration.",
"id": "GHSA-48g8-mw8p-w6j7",
"modified": "2026-05-26T18:31:51Z",
"published": "2026-05-26T18:31:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8856"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/7274065"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-48R7-HPM6-GFXM
Vulnerability from github – Published: 2026-06-15 17:24 – Updated: 2026-07-15 22:04A Denial of Service (DoS) vulnerability exists in the @angular/common package of the Angular framework. The formatDate function, which is also utilized by the standard Angular DatePipe, does not properly limit or validate the length of the format parameter.
When parsing a maliciously crafted, excessively long date format string (e.g., a repeating pattern or very large string), the internal parser splits the string iteratively using a regular expression loop. This results in uncontrolled resource consumption (high CPU utilization and excessive memory allocations), leading to a Denial of Service (DoS).
Impact
1. Server-Side Rendering (SSR)
In Angular applications that leverage Server-Side Rendering, an attacker can supply a malicious payload with an excessively long date format string. Processing this on the server causes high CPU usage and triggers a JavaScript heap out of memory crash, rendering the application unavailable to all users.
2. Client-Side Rendering (CSR)
In standard client-side applications, executing the vulnerable function with an excessively long format string blocks the browser's main thread, causing the browser tab to freeze and become completely unresponsive.
Patched Versions
- 22.0.1
- 21.2.17
- 20.3.25
Attack Preconditions
For this vulnerability to be exploitable, both of the following conditions must be met:
1. Vulnerable Component Usage: The application must format dates using the formatDate utility or the DatePipe.
2. Attacker-Controlled Parameter: The date format string passed to these utilities must be customizable or directly controlled by untrusted user input (e.g., parsed from query parameters, user preferences, or API responses).
If the date format is hardcoded (e.g., 'mediumDate', 'shortTime', or static strings) or properly validated to be within a reasonable length limit, the application is not vulnerable.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "@angular/common"
},
"ranges": [
{
"events": [
{
"introduced": "22.0.0-next.0"
},
{
"fixed": "22.0.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "@angular/common"
},
"ranges": [
{
"events": [
{
"introduced": "21.0.0-next.0"
},
{
"fixed": "21.2.17"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "@angular/common"
},
"ranges": [
{
"events": [
{
"introduced": "20.0.0-next.0"
},
{
"fixed": "20.3.25"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "@angular/common"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "19.2.25"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-54268"
],
"database_specific": {
"cwe_ids": [
"CWE-1333",
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2026-06-15T17:24:52Z",
"nvd_published_at": "2026-06-22T16:16:39Z",
"severity": "HIGH"
},
"details": "A Denial of Service (DoS) vulnerability exists in the `@angular/common` package of the Angular framework. The `formatDate` function, which is also utilized by the standard Angular `DatePipe`, does not properly limit or validate the length of the `format` parameter. \n\nWhen parsing a maliciously crafted, excessively long date format string (e.g., a repeating pattern or very large string), the internal parser splits the string iteratively using a regular expression loop. This results in uncontrolled resource consumption (high CPU utilization and excessive memory allocations), leading to a Denial of Service (DoS).\n\n\n### Impact\n\n#### 1. Server-Side Rendering (SSR)\nIn Angular applications that leverage Server-Side Rendering, an attacker can supply a malicious payload with an excessively long date format string. Processing this on the server causes high CPU usage and triggers a `JavaScript heap out of memory` crash, rendering the application unavailable to all users.\n\n#### 2. Client-Side Rendering (CSR)\nIn standard client-side applications, executing the vulnerable function with an excessively long format string blocks the browser\u0027s main thread, causing the browser tab to freeze and become completely unresponsive.\n\n### Patched Versions\n* 22.0.1 \n* 21.2.17 \n* 20.3.25\n\n### Attack Preconditions\nFor this vulnerability to be exploitable, both of the following conditions must be met:\n1. **Vulnerable Component Usage:** The application must format dates using the `formatDate` utility or the `DatePipe`.\n2. **Attacker-Controlled Parameter:** The date format string passed to these utilities must be customizable or directly controlled by untrusted user input (e.g., parsed from query parameters, user preferences, or API responses).\n\n*If the date format is hardcoded (e.g., `\u0027mediumDate\u0027`, `\u0027shortTime\u0027`, or static strings) or properly validated to be within a reasonable length limit, the application is not vulnerable.*",
"id": "GHSA-48r7-hpm6-gfxm",
"modified": "2026-07-15T22:04:14Z",
"published": "2026-06-15T17:24:52Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/angular/angular/security/advisories/GHSA-48r7-hpm6-gfxm"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54268"
},
{
"type": "WEB",
"url": "https://github.com/angular/angular/pull/69197"
},
{
"type": "WEB",
"url": "https://github.com/angular/angular/commit/eeb03f4ea310e2e51ba5d53a421ec7b418e186cd"
},
{
"type": "PACKAGE",
"url": "https://github.com/angular/angular"
}
],
"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"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "@angular/common: Denial of Service (DoS) via OOM in Date Formatting (formatDate)"
}
GHSA-48VQ-8JQV-GM6F
Vulnerability from github – Published: 2021-08-25 21:01 – Updated: 2021-08-02 21:53In the ckb sync protocol, SyncState maintains a HashMap called 'misbehavior' that keeps a score of a peer's violations of the protocol. This HashMap is keyed to PeerIndex (an alias for SessionId), and entries are never removed from it. SessionId is an integer that increases monotonically with every new connection.
A remote attacker can manipulate this HashMap to grow forever, resulting in degraded performance and ultimately a panic on allocation failure or being killed by the OS, depending on the platform.
This is a critical severity security bug. It could be exploited to create a targeted or network-wide denial of service, to reduce the hash power of the network as part of a 51% attack, and perhaps in other creative ways.
An attack is trivial:
- connect to another node
- send an invalid sync protocol request, such as
SendHeadersfor non-consecutive blocks - disconnect
- repeat
{
"affected": [
{
"package": {
"ecosystem": "crates.io",
"name": "ckb"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.40.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2021-08-02T21:53:41Z",
"nvd_published_at": null,
"severity": "HIGH"
},
"details": "In the ckb sync protocol, SyncState maintains a HashMap called \u0027misbehavior\u0027 that keeps a score of a peer\u0027s violations of the protocol. This HashMap is keyed to PeerIndex (an alias for SessionId), and entries are never removed from it. SessionId is an integer that increases monotonically with every new connection.\n\nA remote attacker can manipulate this HashMap to grow forever, resulting in degraded performance and ultimately a panic on allocation failure or being killed by the OS, depending on the platform.\n\nThis is a critical severity security bug. It could be exploited to create a targeted or network-wide denial of service, to reduce the hash power of the network as part of a 51% attack, and perhaps in other creative ways.\n\nAn attack is trivial:\n\n1. connect to another node\n2. send an invalid sync protocol request, such as `SendHeaders` for non-consecutive blocks\n3. disconnect\n4. repeat",
"id": "GHSA-48vq-8jqv-gm6f",
"modified": "2021-08-02T21:53:41Z",
"published": "2021-08-25T21:01:23Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/nervosnetwork/ckb/security/advisories/GHSA-48vq-8jqv-gm6f"
},
{
"type": "WEB",
"url": "https://rustsec.org/advisories/RUSTSEC-2021-0108.html"
}
],
"schema_version": "1.4.0",
"severity": [],
"summary": "Remote memory exhaustion in ckb"
}
GHSA-48X4-MX8F-GR4H
Vulnerability from github – Published: 2024-08-27 15:32 – Updated: 2024-08-27 19:52An Unauthenticated Denial of Service (DoS) vulnerability exists in Flowise version 1.8.2 leading to a complete crash of the instance running a vulnerable version due to improper handling of user supplied input to the /api/v1/get-upload-file api endpoint.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "flowise"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "1.8.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2024-8182"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2024-08-27T19:52:14Z",
"nvd_published_at": "2024-08-27T13:15:07Z",
"severity": "HIGH"
},
"details": "An Unauthenticated Denial of Service (DoS) vulnerability exists in Flowise version 1.8.2 leading to a complete crash of the instance running a vulnerable version due to improper handling of user supplied input to the `/api/v1/get-upload-file` api endpoint.",
"id": "GHSA-48x4-mx8f-gr4h",
"modified": "2024-08-27T19:52:14Z",
"published": "2024-08-27T15:32:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-8182"
},
{
"type": "PACKAGE",
"url": "https://github.com/FlowiseAI/Flowise"
},
{
"type": "WEB",
"url": "https://tenable.com/security/research/tra-2024-34"
}
],
"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"
},
{
"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": "Flowise Unauthenticated Denial of Service (DoS) vulnerability"
}
GHSA-4922-82MH-7XP2
Vulnerability from github – Published: 2022-05-13 01:42 – Updated: 2025-04-20 03:40The ReadJPEGImage function in coders/jpeg.c in GraphicsMagick 1.3.26 creates a pixel cache before a successful read of a scanline, which allows remote attackers to cause a denial of service (resource consumption) via crafted JPEG files.
{
"affected": [],
"aliases": [
"CVE-2017-11140"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-07-10T03:29:00Z",
"severity": "HIGH"
},
"details": "The ReadJPEGImage function in coders/jpeg.c in GraphicsMagick 1.3.26 creates a pixel cache before a successful read of a scanline, which allows remote attackers to cause a denial of service (resource consumption) via crafted JPEG files.",
"id": "GHSA-4922-82mh-7xp2",
"modified": "2025-04-20T03:40:30Z",
"published": "2022-05-13T01:42:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-11140"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2018/08/msg00002.html"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4206-1"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2018/dsa-4321"
},
{
"type": "WEB",
"url": "http://hg.code.sf.net/p/graphicsmagick/code/rev/b4139088b49a"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/99503"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-495W-C474-HVVJ
Vulnerability from github – Published: 2025-03-26 15:32 – Updated: 2025-03-26 15:32An authenticated attacker can compromise the availability of the device via the network
{
"affected": [],
"aliases": [
"CVE-2025-2820"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-26T15:16:22Z",
"severity": "MODERATE"
},
"details": "An authenticated attacker can compromise the availability of the device via the network",
"id": "GHSA-495w-c474-hvvj",
"modified": "2025-03-26T15:32:46Z",
"published": "2025-03-26T15:32:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-2820"
},
{
"type": "WEB",
"url": "https://www.bizerba.com/downloads/global/information-security/2025/bizerba-sa-2025-0002.pdf"
}
],
"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-496G-FR33-WHRF
Vulnerability from github – Published: 2024-01-31 23:11 – Updated: 2024-01-31 23:11HashiCorp Consul Enterprise versions 1.7.0 up to 1.7.8 and 1.8.0 up to 1.8.4 includes a namespace replication bug which can be triggered to cause denial of service via infinite Raft writes. Fixed in 1.7.9 and 1.8.5.
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "github.com/hashicorp/consul"
},
"ranges": [
{
"events": [
{
"introduced": "1.7.0"
},
{
"fixed": "1.7.9"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Go",
"name": "github.com/hashicorp/consul"
},
"ranges": [
{
"events": [
{
"introduced": "1.8.0"
},
{
"fixed": "1.8.5"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-25201"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-834"
],
"github_reviewed": true,
"github_reviewed_at": "2024-01-31T23:11:24Z",
"nvd_published_at": "2020-11-04T23:15:11Z",
"severity": "HIGH"
},
"details": "HashiCorp Consul Enterprise versions 1.7.0 up to 1.7.8 and 1.8.0 up to 1.8.4 includes a namespace replication bug which can be triggered to cause denial of service via infinite Raft writes. Fixed in 1.7.9 and 1.8.5.",
"id": "GHSA-496g-fr33-whrf",
"modified": "2024-01-31T23:11:24Z",
"published": "2024-01-31T23:11:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-25201"
},
{
"type": "WEB",
"url": "https://github.com/hashicorp/consul/pull/9024"
},
{
"type": "WEB",
"url": "https://github.com/hashicorp/consul/blob/master/CHANGELOG.md#185-october-23-2020"
},
{
"type": "WEB",
"url": "https://github.com/hashicorp/consul/releases/tag/v1.8.5"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202208-09"
},
{
"type": "WEB",
"url": "https://www.hashicorp.com/blog/category/consul"
}
],
"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 in HashiCorp Consul"
}
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.