GSD-2022-21716
Vulnerability from gsd - Updated: 2023-12-13 01:19Details
Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 22.2.0, Twisted SSH client and server implement is able to accept an infinite amount of data for the peer's SSH version identifier. This ends up with a buffer using all the available memory. The attach is a simple as `nc -rv localhost 22 < /dev/zero`. A patch is available in version 22.2.0. There are currently no known workarounds.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2022-21716",
"description": "Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 22.2.0, Twisted SSH client and server implement is able to accept an infinite amount of data for the peer\u0027s SSH version identifier. This ends up with a buffer using all the available memory. The attach is a simple as `nc -rv localhost 22 \u003c /dev/zero`. A patch is available in version 22.2.0. There are currently no known workarounds.",
"id": "GSD-2022-21716",
"references": [
"https://www.suse.com/security/cve/CVE-2022-21716.html",
"https://security.archlinux.org/CVE-2022-21716",
"https://access.redhat.com/errata/RHSA-2022:0982",
"https://access.redhat.com/errata/RHSA-2022:0992",
"https://ubuntu.com/security/CVE-2022-21716",
"https://alas.aws.amazon.com/cve/html/CVE-2022-21716.html",
"https://advisories.mageia.org/CVE-2022-21716.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2022-21716"
],
"details": "Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 22.2.0, Twisted SSH client and server implement is able to accept an infinite amount of data for the peer\u0027s SSH version identifier. This ends up with a buffer using all the available memory. The attach is a simple as `nc -rv localhost 22 \u003c /dev/zero`. A patch is available in version 22.2.0. There are currently no known workarounds.",
"id": "GSD-2022-21716",
"modified": "2023-12-13T01:19:14.512166Z",
"schema_version": "1.4.0"
}
},
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"TITLE": "Buffer Overflow in Twisted"
},
"affects": {
"vendor": {
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"product": {
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"product_name": "twisted",
"version": {
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}
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}
]
},
"impact": {
"cvss": {
"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",
"version": "3.1"
}
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"problemtype": {
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"value": "CWE-120: Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)"
}
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},
{
"name": "https://twistedmatrix.com/trac/ticket/10284",
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"url": "https://twistedmatrix.com/trac/ticket/10284"
},
{
"name": "[debian-lts-announce] 20220308 [SECURITY] [DLA 2938-1] twisted security update",
"refsource": "MLIST",
"url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00009.html"
},
{
"name": "https://www.oracle.com/security-alerts/cpuapr2022.html",
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},
{
"name": "FEDORA-2022-71b66d4747",
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"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GLKHA6WREIVAMBQD7KKWYHPHGGNKMAG6/"
},
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},
{
"name": "GLSA-202301-02",
"refsource": "GENTOO",
"url": "https://security.gentoo.org/glsa/202301-02"
}
]
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"source": {
"advisory": "GHSA-rv6r-3f5q-9rgx",
"discovery": "UNKNOWN"
}
},
"gitlab.com": {
"advisories": [
{
"affected_range": "\u003e=21.7.0,\u003c22.2.0",
"affected_versions": "All versions starting from 21.7.0 before 22.2.0",
"cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"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": "2023-07-24",
"description": "Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 22.2.0, Twisted SSH client and server implement is able to accept an infinite amount of data for the peer\u0027s SSH version identifier. This ends up with a buffer using all the available memory. The attach is a simple as `nc -rv localhost 22 \u003c /dev/zero`. A patch is available in version 22.2.0. There are currently no known workarounds.",
"fixed_versions": [
"22.2.0"
],
"identifier": "CVE-2022-21716",
"identifiers": [
"CVE-2022-21716",
"GHSA-rv6r-3f5q-9rgx"
],
"not_impacted": "All versions before 21.7.0, all versions starting from 22.2.0",
"package_slug": "pypi/Twisted",
"pubdate": "2022-03-03",
"solution": "Upgrade to version 22.2.0 or above.",
"title": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)",
"urls": [
"https://github.com/twisted/twisted/security/advisories/GHSA-rv6r-3f5q-9rgx",
"https://github.com/twisted/twisted/commit/98387b39e9f0b21462f6abc7a1325dc370fcdeb1",
"https://twistedmatrix.com/trac/ticket/10284",
"https://github.com/advisories/GHSA-rv6r-3f5q-9rgx"
],
"uuid": "302607d5-3625-4694-9ed2-92e1cb305f7f"
}
]
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"impact": {
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"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
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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",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6
}
},
"lastModifiedDate": "2023-07-24T13:47Z",
"publishedDate": "2022-03-03T21:15Z"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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 |
|---|
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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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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