fkie_cve-2023-52480
Vulnerability from fkie_nvd
Published
2024-02-29 06:15
Modified
2025-01-13 17:05
Severity ?
7.0 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/18ced78b0ebccc2d16f426143dc56ab3aad666bePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/53ff5cf89142b978b1a5ca8dc4d4425e6a09745fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a2ca5fd3dbcc665e1169044fa0c9e3eba779202bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c77fd3e25a51ac92b0f1b347a96eff6a0b4f066fPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/18ced78b0ebccc2d16f426143dc56ab3aad666bePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/53ff5cf89142b978b1a5ca8dc4d4425e6a09745fPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a2ca5fd3dbcc665e1169044fa0c9e3eba779202bPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c77fd3e25a51ac92b0f1b347a96eff6a0b4f066fPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.6
linux linux_kernel 6.6
linux linux_kernel 6.6
linux linux_kernel 6.6


To clipboard 

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  "cveTags": [],
  "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": "2025-01-13T17:05:39.887",
  "metrics": {
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          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.0,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2024-02-29T06:15:46.017",
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