gsd-2023-52581
Vulnerability from gsd
Modified
2024-03-03 06:01
Details
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: fix memleak when more than 255 elements expired
When more than 255 elements expired we're supposed to switch to a new gc
container structure.
This never happens: u8 type will wrap before reaching the boundary
and nft_trans_gc_space() always returns true.
This means we recycle the initial gc container structure and
lose track of the elements that came before.
While at it, don't deref 'gc' after we've passed it to call_rcu.
Aliases
{
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2023-52581"
],
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: fix memleak when more than 255 elements expired\n\nWhen more than 255 elements expired we\u0027re supposed to switch to a new gc\ncontainer structure.\n\nThis never happens: u8 type will wrap before reaching the boundary\nand nft_trans_gc_space() always returns true.\n\nThis means we recycle the initial gc container structure and\nlose track of the elements that came before.\n\nWhile at it, don\u0027t deref \u0027gc\u0027 after we\u0027ve passed it to call_rcu.",
"id": "GSD-2023-52581",
"modified": "2024-03-03T06:01:51.752552Z",
"schema_version": "1.4.0"
}
},
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"ID": "CVE-2023-52581",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
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"version": {
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{
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"version_name": "5f68718b34a5",
"version_value": "4aea243b6853"
},
{
"version_value": "not down converted",
"x_cve_json_5_version_data": {
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"version": "6.5"
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{
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"version": "6.5.6",
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"versionType": "original_commit_for_fix"
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: fix memleak when more than 255 elements expired\n\nWhen more than 255 elements expired we\u0027re supposed to switch to a new gc\ncontainer structure.\n\nThis never happens: u8 type will wrap before reaching the boundary\nand nft_trans_gc_space() always returns true.\n\nThis means we recycle the initial gc container structure and\nlose track of the elements that came before.\n\nWhile at it, don\u0027t deref \u0027gc\u0027 after we\u0027ve passed it to call_rcu."
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"url": "https://git.kernel.org/stable/c/a995a68e8a3b48533e47c856865d109a1f1a9d01"
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"name": "https://git.kernel.org/stable/c/cf5000a7787cbc10341091d37245a42c119d26c5",
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{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: fix memleak when more than 255 elements expired\n\nWhen more than 255 elements expired we\u0027re supposed to switch to a new gc\ncontainer structure.\n\nThis never happens: u8 type will wrap before reaching the boundary\nand nft_trans_gc_space() always returns true.\n\nThis means we recycle the initial gc container structure and\nlose track of the elements that came before.\n\nWhile at it, don\u0027t deref \u0027gc\u0027 after we\u0027ve passed it to call_rcu."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: nf_tables: corrige memleak cuando caducan m\u00e1s de 255 elementos Cuando caducan m\u00e1s de 255 elementos, se supone que debemos cambiar a una nueva estructura de contenedor gc. Esto nunca sucede: el tipo u8 se ajustar\u00e1 antes de alcanzar el l\u00edmite y nft_trans_gc_space() siempre devuelve verdadero. Esto significa que reciclamos la estructura inicial del contenedor gc y perdemos la pista de los elementos anteriores. Mientras lo hace, no elimine \u0027gc\u0027 despu\u00e9s de que lo hayamos pasado a call_rcu."
}
],
"id": "CVE-2023-52581",
"lastModified": "2024-04-04T14:15:09.277",
"metrics": {},
"published": "2024-03-02T22:15:49.727",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/09c85f2d21ab6b5acba31a037985b13e8e6565b8"
},
{
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"url": "https://git.kernel.org/stable/c/4aea243b6853d06c1d160a9955b759189aa02b14"
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{
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}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis"
}
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.