FKIE_CVE-2019-19462

Vulnerability from fkie_nvd - Published: 2019-11-30 01:15 - Updated: 2026-06-17 02:26
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
relay_open in kernel/relay.c in the Linux kernel through 5.4.1 allows local users to cause a denial of service (such as relay blockage) by triggering a NULL alloc_percpu result.
References
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.htmlMailing List, Third Party Advisory
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2020/06/msg00012.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://lore.kernel.org/lkml/20191129013745.7168-1-dja%40axtens.net/
cve@mitre.orghttps://security.netapp.com/advisory/ntap-20210129-0004/Third Party Advisory
cve@mitre.orghttps://syzkaller-ppc64.appspot.com/bug?id=1c09906c83a8ea811a9e318c2a4f8e243becc6f8Patch, Third Party Advisory
cve@mitre.orghttps://syzkaller-ppc64.appspot.com/bug?id=b05b4d005191cc375cdf848c3d4d980308d50531Patch, Third Party Advisory
cve@mitre.orghttps://syzkaller.appspot.com/bug?id=e4265490d26d6c01cd9bc79dc915ef0a1bf15046Third Party Advisory
cve@mitre.orghttps://syzkaller.appspot.com/bug?id=f4d1cb4330bd3ddf4a628332b4285407b2eedd7bThird Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/4414-1/Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/4425-1/Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/4439-1/Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/4440-1/Third Party Advisory
cve@mitre.orghttps://www.debian.org/security/2020/dsa-4698Third Party Advisory
cve@mitre.orghttps://www.debian.org/security/2020/dsa-4699Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2020/06/msg00012.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lore.kernel.org/lkml/20191129013745.7168-1-dja%40axtens.net/
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20210129-0004/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://syzkaller-ppc64.appspot.com/bug?id=1c09906c83a8ea811a9e318c2a4f8e243becc6f8Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://syzkaller-ppc64.appspot.com/bug?id=b05b4d005191cc375cdf848c3d4d980308d50531Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://syzkaller.appspot.com/bug?id=e4265490d26d6c01cd9bc79dc915ef0a1bf15046Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://syzkaller.appspot.com/bug?id=f4d1cb4330bd3ddf4a628332b4285407b2eedd7bThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/4414-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/4425-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/4439-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/4440-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2020/dsa-4698Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2020/dsa-4699Third Party Advisory
Impacted products
Vendor Product Version
linux linux_kernel *
netapp active_iq_unified_manager *
netapp hci_management_node -
netapp solidfire -
netapp hci_compute_node -
netapp hci_storage_node -
canonical ubuntu_linux 14.04
canonical ubuntu_linux 16.04
canonical ubuntu_linux 18.04
canonical ubuntu_linux 20.04
opensuse leap 15.1
opensuse leap 15.2
debian debian_linux 8.0
debian debian_linux 9.0
debian debian_linux 10.0
To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "relay_open in kernel/relay.c in the Linux kernel through 5.4.1 allows local users to cause a denial of service (such as relay blockage) by triggering a NULL alloc_percpu result."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n relay_open en el archivo kernel/relay.c en el kernel de Linux versiones hasta 5.4.1, permite a usuarios locales causar una denegaci\u00f3n de servicio (tal y como un bloqueo de retransmisi\u00f3n) al desencadenar un resultado NULL de alloc_percpu."
    }
  ],
  "id": "CVE-2019-19462",
  "lastModified": "2026-06-17T02:26:43.240",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
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          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 4.9,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 6.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
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          "baseScore": 5.5,
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          "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",
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        "source": "nvd@nist.gov",
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  "published": "2019-11-30T01:15:10.383",
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  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
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          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
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  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

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