FKIE_CVE-2023-53153
Vulnerability from fkie_nvd - Published: 2025-09-15 14:15 - Updated: 2026-06-17 06:44
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
wifi: cfg80211: Fix use after free for wext
Key information in wext.connect is not reset on (re)connect and can hold
data from a previous connection.
Reset key data to avoid that drivers or mac80211 incorrectly detect a
WEP connection request and access the freed or already reused memory.
Additionally optimize cfg80211_sme_connect() and avoid an useless
schedule of conn_work.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/wireless/sme.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "66af4a2ab1d65d556d638cb9555a3b823c2557a9",
"status": "affected",
"version": "fffd0934b9390f34bec45762192b7edd3b12b4b5",
"versionType": "git"
},
{
"lessThan": "a2a92b3e9d8e03ee3f9ee407fc46a9b4bd02d8b6",
"status": "affected",
"version": "fffd0934b9390f34bec45762192b7edd3b12b4b5",
"versionType": "git"
},
{
"lessThan": "6f1959c17d4cb5b74af6fc31dc787e1dc3e4f6e2",
"status": "affected",
"version": "fffd0934b9390f34bec45762192b7edd3b12b4b5",
"versionType": "git"
},
{
"lessThan": "2cfe78619b0de6d2da773978bc2d22797212eaa7",
"status": "affected",
"version": "fffd0934b9390f34bec45762192b7edd3b12b4b5",
"versionType": "git"
},
{
"lessThan": "fd081afd21eb35b968b0330700c43ec94986e1c4",
"status": "affected",
"version": "fffd0934b9390f34bec45762192b7edd3b12b4b5",
"versionType": "git"
},
{
"lessThan": "22dfb21bf1cd876616d45cda1bc6daa89eec6747",
"status": "affected",
"version": "fffd0934b9390f34bec45762192b7edd3b12b4b5",
"versionType": "git"
},
{
"lessThan": "f4b6a138efb8a32507b8946104e32cb926308da7",
"status": "affected",
"version": "fffd0934b9390f34bec45762192b7edd3b12b4b5",
"versionType": "git"
},
{
"lessThan": "015b8cc5e7c4d7bb671f1984d7b7338c310b185b",
"status": "affected",
"version": "fffd0934b9390f34bec45762192b7edd3b12b4b5",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/wireless/sme.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.32"
},
{
"lessThan": "2.6.32",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"version": "4.14.308",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.276",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.235",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.173",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.99",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.16",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.2.*",
"status": "unaffected",
"version": "6.2.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.3",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "DFF336AC-ACA3-46C5-ACF0-A044A2F61BAE",
"versionEndExcluding": "4.14.308",
"versionStartIncluding": "2.6.32",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "C902FC54-DDBD-4DA6-BFEF-26889A267464",
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"versionStartIncluding": "4.15",
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "13DD5E68-8CB4-46EE-9A8F-C7F6C1A84430",
"versionEndExcluding": "5.4.235",
"versionStartIncluding": "4.20",
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "4D810CFB-B7C5-493C-B98A-0D5F0D8A47B6",
"versionEndExcluding": "5.10.173",
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},
{
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},
{
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},
{
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}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: Fix use after free for wext\n\nKey information in wext.connect is not reset on (re)connect and can hold\ndata from a previous connection.\n\nReset key data to avoid that drivers or mac80211 incorrectly detect a\nWEP connection request and access the freed or already reused memory.\n\nAdditionally optimize cfg80211_sme_connect() and avoid an useless\nschedule of conn_work."
}
],
"id": "CVE-2023-53153",
"lastModified": "2026-06-17T06:44:23.960",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2025-09-15T14:15:37.860",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
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],
"url": "https://git.kernel.org/stable/c/015b8cc5e7c4d7bb671f1984d7b7338c310b185b"
},
{
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},
{
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}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-416"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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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