GSD-2023-27530
Vulnerability from gsd - Updated: 2023-03-03 00:00Details
There is a possible DoS vulnerability in the Multipart MIME parsing code in Rack. This vulnerability has been assigned the CVE identifier CVE-2023-27530.
Versions Affected: All. Not affected: None Fixed Versions: 3.0.4.2, 2.2.6.3, 2.1.4.3, 2.0.9.3
# Impact
The Multipart MIME parsing code in Rack limits the number of file parts, but does not limit the total number of parts that can be uploaded. Carefully crafted requests can abuse this and cause multipart parsing to take longer than expected.
All users running an affected release should either upgrade or use one of the workarounds immediately.
# Workarounds
A proxy can be configured to limit the POST body size which will mitigate this issue.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2023-27530",
"id": "GSD-2023-27530",
"references": [
"https://www.suse.com/security/cve/CVE-2023-27530.html"
]
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"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
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}
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"details": "There is a possible DoS vulnerability in the Multipart MIME parsing code in Rack. This vulnerability has been assigned the CVE identifier CVE-2023-27530.\n\nVersions Affected: All. Not affected: None Fixed Versions: 3.0.4.2, 2.2.6.3, 2.1.4.3, 2.0.9.3\n\n# Impact\nThe Multipart MIME parsing code in Rack limits the number of file parts, but does not limit the total number of parts that can be uploaded. Carefully crafted requests can abuse this and cause multipart parsing to take longer than expected.\n\nAll users running an affected release should either upgrade or use one of the workarounds immediately.\n\n# Workarounds\nA proxy can be configured to limit the POST body size which will mitigate this issue.\n",
"id": "GSD-2023-27530",
"modified": "2023-03-03T00:00:00.000Z",
"published": "2023-03-03T00:00:00.000Z",
"references": [
{
"type": "WEB",
"url": "https://discuss.rubyonrails.org/t/cve-2023-27530-possible-dos-vulnerability-in-multipart-mime-parsing/82388"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": 7.5,
"type": "CVSS_V3"
}
],
"summary": "Possible DoS Vulnerability in Multipart MIME parsing"
}
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"description": "There is a possible DoS vulnerability in the Multipart MIME parsing code in Rack. This vulnerability has been assigned the CVE identifier CVE-2023-27530.\n\nVersions Affected: All. Not affected: None Fixed Versions: 3.0.4.2, 2.2.6.3, 2.1.4.3, 2.0.9.3\n\n# Impact\nThe Multipart MIME parsing code in Rack limits the number of file parts, but does not limit the total number of parts that can be uploaded. Carefully crafted requests can abuse this and cause multipart parsing to take longer than expected.\n\nAll users running an affected release should either upgrade or use one of the workarounds immediately.\n\n# Workarounds\nA proxy can be configured to limit the POST body size which will mitigate this issue.\n",
"gem": "rack",
"ghsa": "3h57-hmj3-gj3p",
"patched_versions": [
"~\u003e 2.0.9, \u003e= 2.0.9.3",
"~\u003e 2.1.4, \u003e= 2.1.4.3",
"~\u003e 2.2.6, \u003e= 2.2.6.3",
"\u003e= 3.0.4.2"
],
"title": "Possible DoS Vulnerability in Multipart MIME parsing",
"url": "https://discuss.rubyonrails.org/t/cve-2023-27530-possible-dos-vulnerability-in-multipart-mime-parsing/82388"
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{
"affected_range": "\u003c2.0.9.3||\u003e=2.1.0 \u003c2.1.4.3||\u003e=2.2.0 \u003c2.2.6.3||\u003e=3.0.0 \u003c3.0.4.2",
"affected_versions": "All versions before 2.0.9.3, all versions starting from 2.1.0 before 2.1.4.3, all versions starting from 2.2.0 before 2.2.6.3, all versions starting from 3.0.0 before 3.0.4.2",
"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-770",
"CWE-937"
],
"date": "2023-04-17",
"description": "There is a possible DoS vulnerability in the Multipart MIME parsing code in Rack. This vulnerability has been assigned the CVE identifier CVE-2023-27530.\n\nVersions Affected: All. Not affected: None Fixed Versions: 3.0.4.2, 2.2.6.3, 2.1.4.3, 2.0.9.3\n\n# Impact\nThe Multipart MIME parsing code in Rack limits the number of file parts, but does not limit the total number of parts that can be uploaded. Carefully crafted requests can abuse this and cause multipart parsing to take longer than expected.\n\nAll users running an affected release should either upgrade or use one of the workarounds immediately.\n\n# Workarounds\nA proxy can be configured to limit the POST body size which will mitigate this issue.\n",
"fixed_versions": [
"2.0.9.3",
"2.1.4.3",
"2.2.6.3",
"3.0.4.2"
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"identifier": "GMS-2023-663",
"identifiers": [
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"package_slug": "gem/rack",
"pubdate": "2023-03-10",
"solution": "Upgrade to versions 2.0.9.3, 2.1.4.3, 2.2.6.3, 3.0.4.2 or above.",
"title": "Rack has possible DoS Vulnerability in Multipart MIME parsing",
"urls": [
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"https://discuss.rubyonrails.org/t/cve-2023-27530-possible-dos-vulnerability-in-multipart-mime-parsing/82388",
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"uuid": "8cb7e242-c54e-46c7-b1f7-a1dc6fcec080"
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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": "2023-12-08T22:15Z",
"publishedDate": "2023-03-10T22:15Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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