fkie_cve-2022-3910
Vulnerability from fkie_nvd
Published
2022-11-22 13:15
Modified
2024-11-21 07:20
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
Use After Free vulnerability in Linux Kernel allows Privilege Escalation. An improper Update of Reference Count in io_uring leads to Use-After-Free and Local Privilege Escalation. When io_msg_ring was invoked with a fixed file, it called io_fput_file() which improperly decreased its reference count (leading to Use-After-Free and Local Privilege Escalation). Fixed files are permanently registered to the ring, and should not be put separately. We recommend upgrading past commit https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679 https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679
References
cve-coordination@google.comhttps://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679Patch, Third Party Advisory
cve-coordination@google.comhttps://kernel.dance/#fc7222c3a9f56271fba02aabbfbae999042f1679Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://kernel.dance/#fc7222c3a9f56271fba02aabbfbae999042f1679Patch, Third Party Advisory
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 6.0
linux linux_kernel 6.0
linux linux_kernel 6.0
linux linux_kernel 6.0
linux linux_kernel 6.0


To clipboard 

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  "cveTags": [],
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      "value": "Use After Free vulnerability in Linux Kernel allows Privilege Escalation. An improper Update of Reference Count in io_uring leads to Use-After-Free and Local Privilege Escalation.\nWhen io_msg_ring was invoked with a fixed file, it called io_fput_file() which improperly decreased its reference count (leading to Use-After-Free and Local Privilege Escalation). Fixed files are permanently registered to the ring, and should not be put separately.\n\nWe recommend upgrading past commit  https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679 https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679 \n"
    },
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      "lang": "es",
      "value": "La vulnerabilidad de Use After Free en el kernel de Linux permite la escalada de privilegios. Una actualizaci\u00f3n incorrecta del recuento de referencias en io_uring conduce a un use-after-free y escalada de privilegios locales. Cuando se invoc\u00f3 io_msg_ring con un archivo fijo, llam\u00f3 a io_fput_file(), lo que disminuy\u00f3 incorrectamente su recuento de referencias (lo que llev\u00f3 a Use-After-Free y Escalada de privilegios locales). Los archivos fijos est\u00e1n registrados permanentemente en el anillo y no deben colocarse por separado. Recomendamos actualizar el commit anteriorhttps://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679 https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679 "
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  "id": "CVE-2022-3910",
  "lastModified": "2024-11-21T07:20:30.850",
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}


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