ghsa-5x79-w82f-gw8w
Vulnerability from github
Published
2022-12-13 17:43
Modified
2022-12-13 17:43
Severity ?
Summary
Inefficient Regular Expression Complexity in rails-html-sanitizer
Details
Summary
Certain configurations of rails-html-sanitizer < 1.4.4 use an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial of service through CPU resource consumption.
Mitigation
Upgrade to rails-html-sanitizer >= 1.4.4.
Severity
The maintainers have evaluated this as High Severity 7.5 (CVSS3.1).
References
- CWE - CWE-1333: Inefficient Regular Expression Complexity (4.9)
- https://hackerone.com/reports/1684163
Credit
This vulnerability was responsibly reported by @ooooooo-q (https://github.com/ooooooo-q).
{
"affected": [
{
"package": {
"ecosystem": "RubyGems",
"name": "rails-html-sanitizer"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.4.4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-23517"
],
"database_specific": {
"cwe_ids": [
"CWE-1333"
],
"github_reviewed": true,
"github_reviewed_at": "2022-12-13T17:43:02Z",
"nvd_published_at": "2022-12-14T17:15:00Z",
"severity": "HIGH"
},
"details": "## Summary\n\nCertain configurations of rails-html-sanitizer `\u003c 1.4.4` use an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial of service through CPU resource consumption.\n\n\n## Mitigation\n\nUpgrade to rails-html-sanitizer `\u003e= 1.4.4`.\n\n\n## Severity\n\nThe maintainers have evaluated this as [High Severity 7.5 (CVSS3.1)](https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).\n\n\n## References\n\n- [CWE - CWE-1333: Inefficient Regular Expression Complexity (4.9)](https://cwe.mitre.org/data/definitions/1333.html)\n- https://hackerone.com/reports/1684163\n\n\n## Credit\n\nThis vulnerability was responsibly reported by @ooooooo-q (https://github.com/ooooooo-q).\n",
"id": "GHSA-5x79-w82f-gw8w",
"modified": "2022-12-13T17:43:02Z",
"published": "2022-12-13T17:43:02Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-23517"
},
{
"type": "WEB",
"url": "https://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979"
},
{
"type": "WEB",
"url": "https://hackerone.com/reports/1684163"
},
{
"type": "PACKAGE",
"url": "https://github.com/rails/rails-html-sanitizer"
},
{
"type": "WEB",
"url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rails-html-sanitizer/CVE-2022-23517.yml"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00012.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"
}
],
"summary": "Inefficient Regular Expression Complexity in rails-html-sanitizer"
}
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.