fkie_cve-2021-47521
Vulnerability from fkie_nvd
Published
2024-05-24 15:15
Modified
2024-11-21 06:36
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: can: sja1000: fix use after free in ems_pcmcia_add_card() If the last channel is not available then "dev" is freed. Fortunately, we can just use "pdev->irq" instead. Also we should check if at least one channel was set up.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1a295fea90e1acbe80c6d4940f5ff856edcd6becPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1dd5b819f7e406dc15bbc7670596ff25261aaa2aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3ec6ca6b1a8e64389f0212b5a1b0f6fed1909e45Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/474f9a8534f5f89841240a7e978bafd6e1e039cePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/923f4dc5df679f678e121c20bf2fd70f7bf3e288Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c8718026ba287168ff9ad0ccc4f9a413062cba36Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cbd86110546f7f730a1f5d7de56c944a336c15c4Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ccf070183e4655824936c0f96c4a2bcca93419aaPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1a295fea90e1acbe80c6d4940f5ff856edcd6becPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1dd5b819f7e406dc15bbc7670596ff25261aaa2aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/3ec6ca6b1a8e64389f0212b5a1b0f6fed1909e45Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/474f9a8534f5f89841240a7e978bafd6e1e039cePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/923f4dc5df679f678e121c20bf2fd70f7bf3e288Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c8718026ba287168ff9ad0ccc4f9a413062cba36Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/cbd86110546f7f730a1f5d7de56c944a336c15c4Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ccf070183e4655824936c0f96c4a2bcca93419aaPatch
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 

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  "cveTags": [],
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: sja1000: fix use after free in ems_pcmcia_add_card()\n\nIf the last channel is not available then \"dev\" is freed.  Fortunately,\nwe can just use \"pdev-\u003eirq\" instead.\n\nAlso we should check if at least one channel was set up."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: can: sja1000: arreglar el use after free en ems_pcmcia_add_card() Si el \u00faltimo canal no est\u00e1 disponible entonces se libera \"dev\". Afortunadamente, podemos usar \"pdev-\u0026gt;irq\" en su lugar. Tambi\u00e9n debemos comprobar si se configur\u00f3 al menos un canal."
    }
  ],
  "id": "CVE-2021-47521",
  "lastModified": "2024-11-21T06:36:26.170",
  "metrics": {
    "cvssMetricV31": [
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
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  "published": "2024-05-24T15:15:14.203",
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      "source": "nvd@nist.gov",
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}


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