fkie_cve-2024-26606
Vulnerability from fkie_nvd
Published
2024-02-26 16:28
Modified
2024-11-21 09:02
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: binder: signal epoll threads of self-work In (e)poll mode, threads often depend on I/O events to determine when data is ready for consumption. Within binder, a thread may initiate a command via BINDER_WRITE_READ without a read buffer and then make use of epoll_wait() or similar to consume any responses afterwards. It is then crucial that epoll threads are signaled via wakeup when they queue their own work. Otherwise, they risk waiting indefinitely for an event leaving their work unhandled. What is worse, subsequent commands won't trigger a wakeup either as the thread has pending work.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/42beab162dcee1e691ee4934292d51581c29df61Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/82722b453dc2f967b172603e389ee7dc1b3137ccPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/90e09c016d72b91e76de25f71c7b93d94cc3c769Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/93b372c39c40cbf179e56621e6bc48240943af69Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/97830f3c3088638ff90b20dfba2eb4d487bf14d7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a423042052ec2bdbf1e552e621e6a768922363ccPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a7ae586f6f6024f490b8546c8c84670f96bb9b68Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dd64bb8329ce0ea27bc557e4160c2688835402acPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/42beab162dcee1e691ee4934292d51581c29df61Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/82722b453dc2f967b172603e389ee7dc1b3137ccPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/90e09c016d72b91e76de25f71c7b93d94cc3c769Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/93b372c39c40cbf179e56621e6bc48240943af69Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/97830f3c3088638ff90b20dfba2eb4d487bf14d7Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a423042052ec2bdbf1e552e621e6a768922363ccPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a7ae586f6f6024f490b8546c8c84670f96bb9b68Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/dd64bb8329ce0ea27bc557e4160c2688835402acPatch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbinder: signal epoll threads of self-work\n\nIn (e)poll mode, threads often depend on I/O events to determine when\ndata is ready for consumption. Within binder, a thread may initiate a\ncommand via BINDER_WRITE_READ without a read buffer and then make use\nof epoll_wait() or similar to consume any responses afterwards.\n\nIt is then crucial that epoll threads are signaled via wakeup when they\nqueue their own work. Otherwise, they risk waiting indefinitely for an\nevent leaving their work unhandled. What is worse, subsequent commands\nwon\u0027t trigger a wakeup either as the thread has pending work."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: carpeta: se\u00f1al de epoll de subprocesos de autotrabajo En el modo (e)poll, los subprocesos a menudo dependen de eventos de E/S para determinar cu\u00e1ndo los datos est\u00e1n listos para el consumo. Dentro de Binder, un hilo puede iniciar un comando a trav\u00e9s de BINDER_WRITE_READ sin un b\u00fafer de lectura y luego hacer uso de epoll_wait() o similar para consumir cualquier respuesta posterior. Entonces es crucial que los subprocesos de epoll sean se\u00f1alizados mediante activaci\u00f3n cuando ponen en cola su propio trabajo. De lo contrario, corren el riesgo de esperar indefinidamente a que ocurra un evento que deje su trabajo sin gestionar. Lo que es peor, los comandos posteriores tampoco activar\u00e1n una reactivaci\u00f3n ya que el hilo tiene trabajo pendiente."
    }
  ],
  "id": "CVE-2024-26606",
  "lastModified": "2024-11-21T09:02:38.833",
  "metrics": {
    "cvssMetricV31": [
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-02-26T16:28:00.260",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
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          "value": "NVD-CWE-noinfo"
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      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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