gsd-2023-52480
Vulnerability from gsd
Modified
2024-02-21 06:01
Details
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix race condition between session lookup and expire
Thread A + Thread B
ksmbd_session_lookup | smb2_sess_setup
sess = xa_load |
|
| xa_erase(&conn->sessions, sess->id);
|
| ksmbd_session_destroy(sess) --> kfree(sess)
|
// UAF! |
sess->last_active = jiffies |
+
This patch add rwsem to fix race condition between ksmbd_session_lookup
and ksmbd_expire_session.
Aliases
{
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2023-52480"
],
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix race condition between session lookup and expire\n\n Thread A + Thread B\n ksmbd_session_lookup | smb2_sess_setup\n sess = xa_load |\n |\n | xa_erase(\u0026conn-\u003esessions, sess-\u003eid);\n |\n | ksmbd_session_destroy(sess) --\u003e kfree(sess)\n |\n // UAF! |\n sess-\u003elast_active = jiffies |\n +\n\nThis patch add rwsem to fix race condition between ksmbd_session_lookup\nand ksmbd_expire_session.",
"id": "GSD-2023-52480",
"modified": "2024-02-21T06:01:53.379125Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
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"ASSIGNER": "cve@kernel.org",
"ID": "CVE-2023-52480",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
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"product": {
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{
"product_name": "Linux",
"version": {
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"version_affected": "\u003c",
"version_name": "1da177e4c3f4",
"version_value": "c77fd3e25a51"
},
{
"version_value": "not down converted",
"x_cve_json_5_version_data": {
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"status": "unaffected",
"version": "5.15.145",
"versionType": "custom"
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{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.57",
"versionType": "custom"
},
{
"lessThanOrEqual": "6.5.*",
"status": "unaffected",
"version": "6.5.7",
"versionType": "custom"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.6",
"versionType": "original_commit_for_fix"
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"data_version": "4.0",
"description": {
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{
"lang": "eng",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix race condition between session lookup and expire\n\n Thread A + Thread B\n ksmbd_session_lookup | smb2_sess_setup\n sess = xa_load |\n |\n | xa_erase(\u0026conn-\u003esessions, sess-\u003eid);\n |\n | ksmbd_session_destroy(sess) --\u003e kfree(sess)\n |\n // UAF! |\n sess-\u003elast_active = jiffies |\n +\n\nThis patch add rwsem to fix race condition between ksmbd_session_lookup\nand ksmbd_expire_session."
}
]
},
"generator": {
"engine": "bippy-c298863b1525"
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"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
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]
}
]
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{
"name": "https://git.kernel.org/stable/c/c77fd3e25a51ac92b0f1b347a96eff6a0b4f066f",
"refsource": "MISC",
"url": "https://git.kernel.org/stable/c/c77fd3e25a51ac92b0f1b347a96eff6a0b4f066f"
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"name": "https://git.kernel.org/stable/c/a2ca5fd3dbcc665e1169044fa0c9e3eba779202b",
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"url": "https://git.kernel.org/stable/c/a2ca5fd3dbcc665e1169044fa0c9e3eba779202b"
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"name": "https://git.kernel.org/stable/c/18ced78b0ebccc2d16f426143dc56ab3aad666be",
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"url": "https://git.kernel.org/stable/c/18ced78b0ebccc2d16f426143dc56ab3aad666be"
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"name": "https://git.kernel.org/stable/c/53ff5cf89142b978b1a5ca8dc4d4425e6a09745f",
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"url": "https://git.kernel.org/stable/c/53ff5cf89142b978b1a5ca8dc4d4425e6a09745f"
}
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"nvd.nist.gov": {
"cve": {
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix race condition between session lookup and expire\n\n Thread A + Thread B\n ksmbd_session_lookup | smb2_sess_setup\n sess = xa_load |\n |\n | xa_erase(\u0026conn-\u003esessions, sess-\u003eid);\n |\n | ksmbd_session_destroy(sess) --\u003e kfree(sess)\n |\n // UAF! |\n sess-\u003elast_active = jiffies |\n +\n\nThis patch add rwsem to fix race condition between ksmbd_session_lookup\nand ksmbd_expire_session."
},
{
"lang": "es",
"value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: ksmbd: corrige la condici\u00f3n de ejecuci\u00f3n entre la b\u00fasqueda de sesi\u00f3n y la caducidad del subproceso A + subproceso B ksmbd_session_lookup | smb2_sess_setup sess = xa_load | | | xa_erase(\u0026amp;conn-\u0026gt;sesiones, sesi\u00f3n-\u0026gt;id); | | ksmbd_session_destroy(sess) --\u0026gt; kfree(sess) | // \u00a1UAF! | sess-\u0026gt;last_active = jiffies | + Este parche agrega rwsem para corregir la condici\u00f3n de ejecuci\u00f3n entre ksmbd_session_lookup y ksmbd_expire_session."
}
],
"id": "CVE-2023-52480",
"lastModified": "2024-02-29T13:49:29.390",
"metrics": {},
"published": "2024-02-29T06:15:46.017",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/18ced78b0ebccc2d16f426143dc56ab3aad666be"
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{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/53ff5cf89142b978b1a5ca8dc4d4425e6a09745f"
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"url": "https://git.kernel.org/stable/c/a2ca5fd3dbcc665e1169044fa0c9e3eba779202b"
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"url": "https://git.kernel.org/stable/c/c77fd3e25a51ac92b0f1b347a96eff6a0b4f066f"
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],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis"
}
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- 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.