FKIE_CVE-2024-26694
Vulnerability from fkie_nvd - Published: 2024-04-03 15:15 - Updated: 2025-01-07 20:53
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
wifi: iwlwifi: fix double-free bug
The storage for the TLV PC register data wasn't done like all
the other storage in the drv->fw area, which is cleared at the
end of deallocation. Therefore, the freeing must also be done
differently, explicitly NULL'ing it out after the free, since
otherwise there's a nasty double-free bug here if a file fails
to load after this has been parsed, and we get another free
later (e.g. because no other file exists.) Fix that by adding
the missing NULL assignment.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | 6.8 | |
| linux | linux_kernel | 6.8 | |
| linux | linux_kernel | 6.8 |
{
"configurations": [
{
"nodes": [
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"matchCriteriaId": "36E1DD5F-520C-45E0-A857-81C3B5CB12FE",
"versionEndExcluding": "6.6.18",
"versionStartIncluding": "6.4",
"vulnerable": true
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"versionEndExcluding": "6.7.6",
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: fix double-free bug\n\nThe storage for the TLV PC register data wasn\u0027t done like all\nthe other storage in the drv-\u003efw area, which is cleared at the\nend of deallocation. Therefore, the freeing must also be done\ndifferently, explicitly NULL\u0027ing it out after the free, since\notherwise there\u0027s a nasty double-free bug here if a file fails\nto load after this has been parsed, and we get another free\nlater (e.g. because no other file exists.) Fix that by adding\nthe missing NULL assignment."
},
{
"lang": "es",
"value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: wifi: iwlwifi: corrige el error de doble liberaci\u00f3n El almacenamiento de los datos de registro de PC TLV no se realiz\u00f3 como el resto del almacenamiento en el \u00e1rea drv-\u0026gt;fw, que se borra en el fin de la desasignaci\u00f3n. Por lo tanto, la liberaci\u00f3n tambi\u00e9n debe realizarse de manera diferente, anul\u00e1ndolo expl\u00edcitamente despu\u00e9s de la liberaci\u00f3n, ya que de lo contrario hay un desagradable error de doble liberaci\u00f3n aqu\u00ed si un archivo no se carga despu\u00e9s de haber sido analizado y obtenemos otra liberaci\u00f3n m\u00e1s tarde (por ejemplo porque no existe ning\u00fan otro archivo). Solucione el problema agregando la asignaci\u00f3n NULL que falta."
}
],
"id": "CVE-2024-26694",
"lastModified": "2025-01-07T20:53:53.143",
"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"
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"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
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"published": "2024-04-03T15:15:52.717",
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"value": "CWE-415"
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"source": "nvd@nist.gov",
"type": "Primary"
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]
}
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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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