cve-2023-52480
Vulnerability from cvelistv5
Published
2024-02-29 05:43
Modified
2024-11-04 14:47
Severity ?
EPSS score ?
Summary
ksmbd: fix race condition between session lookup and expire
References
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"fs/smb/server/connection.h",
"fs/smb/server/mgmt/user_session.c"
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"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."
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"nvd": "{\"cve\":{\"id\":\"CVE-2023-52480\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-02-29T06:15:46.017\",\"lastModified\":\"2024-02-29T13:49:29.390\",\"vulnStatus\":\"Awaiting Analysis\",\"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.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/18ced78b0ebccc2d16f426143dc56ab3aad666be\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/53ff5cf89142b978b1a5ca8dc4d4425e6a09745f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a2ca5fd3dbcc665e1169044fa0c9e3eba779202b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c77fd3e25a51ac92b0f1b347a96eff6a0b4f066f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
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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.