GSD-2022-35923
Vulnerability from gsd - Updated: 2023-12-13 01:19Details
v8n is a javascript validation library. Versions of v8n prior to 1.5.1 were found to have an inefficient regular expression complexity in the `lowercase()` and `uppercase()` regex which could lead to a denial of service attack. In testing of the `lowercase()` function a payload of 'a' + 'a'.repeat(i) + 'A' with 32 leading characters took 29443 ms to execute. The same issue happens with uppercase(). Users are advised to upgrade. There are no known workarounds for this issue.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2022-35923",
"description": "v8n is a javascript validation library. Versions of v8n prior to 1.5.1 were found to have an inefficient regular expression complexity in the `lowercase()` and `uppercase()` regex which could lead to a denial of service attack. In testing of the `lowercase()` function a payload of \u0027a\u0027 + \u0027a\u0027.repeat(i) + \u0027A\u0027 with 32 leading characters took 29443 ms to execute. The same issue happens with uppercase(). Users are advised to upgrade. There are no known workarounds for this issue.",
"id": "GSD-2022-35923"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
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"details": "v8n is a javascript validation library. Versions of v8n prior to 1.5.1 were found to have an inefficient regular expression complexity in the `lowercase()` and `uppercase()` regex which could lead to a denial of service attack. In testing of the `lowercase()` function a payload of \u0027a\u0027 + \u0027a\u0027.repeat(i) + \u0027A\u0027 with 32 leading characters took 29443 ms to execute. The same issue happens with uppercase(). Users are advised to upgrade. There are no known workarounds for this issue.",
"id": "GSD-2022-35923",
"modified": "2023-12-13T01:19:33.794363Z",
"schema_version": "1.4.0"
}
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"STATE": "PUBLIC",
"TITLE": "Inefficient Regular Expression Complexity in v8n"
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"affects": {
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"product": {
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}
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"impact": {
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"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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"url": "https://github.com/imbrn/v8n/commit/92393862156fad190c05ec3f6e2bc73308dcd2f9"
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"source": {
"advisory": "GHSA-xrx9-gj26-5wx9",
"discovery": "UNKNOWN"
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"gitlab.com": {
"advisories": [
{
"affected_range": "\u003c1.5.1",
"affected_versions": "All versions before 1.5.1",
"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"cwe_ids": [
"CWE-1035",
"CWE-1333",
"CWE-937"
],
"date": "2023-07-21",
"description": "v8n is a javascript validation library. Versions of v8n prior to 1.5.1 were found to have an inefficient regular expression complexity in the `lowercase()` and `uppercase()` regex which could lead to a denial of service attack. In testing of the `lowercase()` function a payload of \u0027a\u0027 + \u0027a\u0027.repeat(i) + \u0027A\u0027 with 32 leading characters took 29443 ms to execute. The same issue happens with uppercase(). Users are advised to upgrade. There are no known workarounds for this issue.",
"fixed_versions": [
"1.5.1"
],
"identifier": "CVE-2022-35923",
"identifiers": [
"CVE-2022-35923",
"GHSA-xrx9-gj26-5wx9"
],
"not_impacted": "All versions starting from 1.5.1",
"package_slug": "npm/v8n",
"pubdate": "2022-08-02",
"solution": "Upgrade to version 1.5.1 or above.",
"title": "Inefficient Regular Expression Complexity",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2022-35923",
"https://github.com/imbrn/v8n/security/advisories/GHSA-xrx9-gj26-5wx9",
"https://github.com/imbrn/v8n/commit/92393862156fad190c05ec3f6e2bc73308dcd2f9",
"https://huntr.dev/bounties/2d92f644-593b-43b4-bfd1-c8042ac60609/"
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"uuid": "6b082646-cd59-4ba0-b061-02aabbff3a5a"
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"impact": {
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"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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"impactScore": 3.6
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},
"lastModifiedDate": "2023-07-21T20:49Z",
"publishedDate": "2022-08-02T20:15Z"
}
}
}
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
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Nomenclature
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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