CVE-2026-23060 (GCVE-0-2026-23060)
Vulnerability from cvelistv5 – Published: 2026-02-04 16:07 – Updated: 2026-09-08 08:44
VLAI
EPSS
VEX
Title
crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec
Summary
In the Linux kernel, the following vulnerability has been resolved:
crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec
authencesn assumes an ESP/ESN-formatted AAD. When assoclen is shorter than
the minimum expected length, crypto_authenc_esn_decrypt() can advance past
the end of the destination scatterlist and trigger a NULL pointer dereference
in scatterwalk_map_and_copy(), leading to a kernel panic (DoS).
Add a minimum AAD length check to fail fast on invalid inputs.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 20:40 UTC
Assigner
References
8 references
Impacted products
5 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
104880a6b470958ddc30e139c41aa4f6ed3a5234 , < df22c9a65e9a9daa368a72fed596af9d7d5876bb
(git)
Affected: 104880a6b470958ddc30e139c41aa4f6ed3a5234 , < fee86edf5803f1d1f19e3b4f2dacac241bddfa48 (git) Affected: 104880a6b470958ddc30e139c41aa4f6ed3a5234 , < 767e8349f7e929b7dd95c08f0b4cb353459b365e (git) Affected: 104880a6b470958ddc30e139c41aa4f6ed3a5234 , < b0a9609283a5c852addb513dafa655c61eebc1ef (git) Affected: 104880a6b470958ddc30e139c41aa4f6ed3a5234 , < 161bdc90fce25bd9890adc67fa1c8563a7acbf40 (git) Affected: 104880a6b470958ddc30e139c41aa4f6ed3a5234 , < 9532ff0d0e90ff78a214299f594ab9bac81defe4 (git) Affected: 104880a6b470958ddc30e139c41aa4f6ed3a5234 , < 2397e9264676be7794f8f7f1e9763d90bd3c7335 (git) |
guessed | |
| Linux | Linux |
Affected:
4.3
Unaffected: 0 , < 4.3 (semver) Unaffected: 5.10.249 , ≤ 5.10.* (semver) Unaffected: 5.15.199 , ≤ 5.15.* (semver) Unaffected: 6.1.162 , ≤ 6.1.* (semver) Unaffected: 6.6.122 , ≤ 6.6.* (semver) Unaffected: 6.12.68 , ≤ 6.12.* (semver) Unaffected: 6.18.8 , ≤ 6.18.* (semver) Unaffected: 6.19 , ≤ * (original_commit_for_fix) |
guessed | |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
guessed | |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
guessed | |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
guessed |
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"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ncrypto: authencesn - rechazar AAD demasiado corto (assoclen\u0026lt;8) para coincidir con la especificaci\u00f3n ESP/ESN\n\nauthencesn asume un AAD con formato ESP/ESN. Cuando assoclen es m\u00e1s corto que la longitud m\u00ednima esperada, crypto_authenc_esn_decrypt() puede avanzar m\u00e1s all\u00e1 del final de la scatterlist de destino y activar una desreferencia de puntero NULL en scatterwalk_map_and_copy(), lo que lleva a un p\u00e1nico del kernel (DoS).\n\nA\u00f1adir una comprobaci\u00f3n de longitud m\u00ednima de AAD para fallar r\u00e1pidamente con entradas no v\u00e1lidas."
}
],
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"privilegesRequired": "LOW",
"scope": "UNCHANGED",
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},
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{
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}
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"id": "CVE-2026-23060",
"initial_release_date": "2026-02-04T00:00:00+00:00",
"product_status:fixed": "612",
"product_status:known_affected": "70",
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"status": "final",
"title": "kernel: Linux kernel: Denial of Service in authencesn due to too-short AAD",
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"version": "3"
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],
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}
],
"x_adpType": "supplier"
},
{
"metrics": [
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"options": [
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},
{
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},
{
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}
],
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"timestamp": "2026-06-10T20:40:49.111568Z",
"version": "2.0.3"
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
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],
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}
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}
}
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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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