FKIE_CVE-2020-14390

Vulnerability from fkie_nvd - Published: 2020-09-18 18:15 - Updated: 2026-10-08 21:17
Severity
5.6 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H
Summary
A flaw was found in the Linux kernel in versions before 5.9-rc6. When changing screen size, an out-of-bounds memory write can occur leading to memory corruption or a denial of service. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.
References
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2020-10/msg00001.html
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1876788
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00001.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1876788
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 5.9.0
linux linux_kernel 5.9.0
linux linux_kernel 5.9.0
linux linux_kernel 5.9.0
linux linux_kernel 5.9.0
linux linux_kernel 5.9.0
debian debian_linux 9.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "kernel",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Linux kernel versions before 5.9-rc6"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
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              "versionEndExcluding": "5.9.0",
              "versionStartIncluding": "2.2.3",
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            },
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          "negate": false,
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              "vulnerable": true
            }
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    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in the Linux kernel in versions before 5.9-rc6. When changing screen size, an out-of-bounds memory write can occur leading to memory corruption or a denial of service. Due to the nature of the flaw, privilege escalation cannot be fully ruled out."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 un fallo en el kernel de Linux en las versiones anteriores a 5.9-rc6. Cuando se cambia el tama\u00f1o de la pantalla, puede ocurrir una escritura de memoria fuera de l\u00edmites conllevando a una corrupci\u00f3n de la memoria o una denegaci\u00f3n de servicio.La mayor amenaza de esta vulnerabilidad es la disponibilidad del sistema. Debido a la naturaleza del fallo, la escalada de privilegios no puede ser totalmente descartada"
    }
  ],
  "id": "CVE-2020-14390",
  "lastModified": "2026-10-08T21:17:23.590",
  "metrics": {
    "cvssMetricV2": [
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        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.6,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
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    "cvssMetricV31": [
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        "cvssData": {
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          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H",
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    "ssvcV203": [
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        "ssvcData": {
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          "options": [
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              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-10-08T20:56:34.546188Z",
          "version": "2.0.3"
        }
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    ]
  },
  "published": "2020-09-18T18:15:16.503",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00001.html"
    },
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      "source": "secalert@redhat.com",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1876788"
    },
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      "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html"
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      "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html"
    },
    {
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      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00001.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    },
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  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
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        {
          "lang": "en",
          "value": "CWE-787"
        }
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      "source": "secalert@redhat.com",
      "type": "Secondary"
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    {
      "description": [
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          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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