Vulnerability-Lookup

ubuntu-cve-2019-3887

Vulnerability from osv_ubuntu

Published

2019-04-09 00:00

Modified

2025-09-08 16:45

Summary

Details

A flaw was found in the way KVM hypervisor handled x2APIC Machine Specific Rregister (MSR) access with nested(=1) virtualization enabled. In that, L1 guest could access L0's APIC register values via L2 guest, when 'virtualize x2APIC mode' is enabled. A guest could use this flaw to potentially crash the host kernel resulting in DoS issue. Kernel versions from 4.16 and newer are vulnerable to this issue.

Severity

5.6 (Medium)


                    
                      CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H

6.7 (Medium)


                    
                      CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:H

5.6 (Medium)


                    
                      CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2019-3887	REPORT
	https://www.openwall.com/lists/oss-security/2019/…	REPORT
	https://ubuntu.com/security/notices/USN-3979-1	ADVISORY
	https://ubuntu.com/security/notices/USN-3980-1	ADVISORY
	https://ubuntu.com/security/notices/USN-3980-2	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2019-3887	REPORT

JSON

To clipboard

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            "binary_name": "ppp-modules-4.18.0-20-generic-di",
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            "binary_version": "4.18.0-20.21~18.04.1"
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            "binary_version": "4.18.0-20.21~18.04.1"
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            "binary_name": "sata-modules-4.18.0-20-snapdragon-di",
            "binary_version": "4.18.0-20.21~18.04.1"
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          {
            "binary_name": "scsi-modules-4.18.0-20-generic-di",
            "binary_version": "4.18.0-20.21~18.04.1"
          },
          {
            "binary_name": "scsi-modules-4.18.0-20-generic-lpae-di",
            "binary_version": "4.18.0-20.21~18.04.1"
          },
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            "binary_name": "scsi-modules-4.18.0-20-snapdragon-di",
            "binary_version": "4.18.0-20.21~18.04.1"
          },
          {
            "binary_name": "serial-modules-4.18.0-20-generic-di",
            "binary_version": "4.18.0-20.21~18.04.1"
          },
          {
            "binary_name": "storage-core-modules-4.18.0-20-generic-di",
            "binary_version": "4.18.0-20.21~18.04.1"
          },
          {
            "binary_name": "storage-core-modules-4.18.0-20-generic-lpae-di",
            "binary_version": "4.18.0-20.21~18.04.1"
          },
          {
            "binary_name": "storage-core-modules-4.18.0-20-snapdragon-di",
            "binary_version": "4.18.0-20.21~18.04.1"
          },
          {
            "binary_name": "usb-modules-4.18.0-20-generic-di",
            "binary_version": "4.18.0-20.21~18.04.1"
          },
          {
            "binary_name": "usb-modules-4.18.0-20-generic-lpae-di",
            "binary_version": "4.18.0-20.21~18.04.1"
          },
          {
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            "binary_version": "4.18.0-20.21~18.04.1"
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        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "linux-hwe",
        "purl": "pkg:deb/ubuntu/linux-hwe@4.18.0-20.21~18.04.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.18.0-20.21~18.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.18.0-13.14~18.04.1",
        "4.18.0-14.15~18.04.1",
        "4.18.0-15.16~18.04.1",
        "4.18.0-16.17~18.04.1",
        "4.18.0-17.18~18.04.1",
        "4.18.0-18.19~18.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "A flaw was found in the way KVM hypervisor handled x2APIC Machine Specific Rregister (MSR) access with nested(=1) virtualization enabled. In that, L1 guest could access L0\u0027s APIC register values via L2 guest, when \u0027virtualize x2APIC mode\u0027 is enabled. A guest could use this flaw to potentially crash the host kernel resulting in DoS issue. Kernel versions from 4.16 and newer are vulnerable to this issue.",
  "id": "UBUNTU-CVE-2019-3887",
  "modified": "2025-09-08T16:45:14Z",
  "published": "2019-04-09T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-3887"
    },
    {
      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2019/04/08/1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3979-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3980-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3980-2"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2019-3887"
    }
  ],
  "related": [
    "USN-3979-1",
    "USN-3980-1",
    "USN-3980-2"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2019-3887"
  ]
}

CVE-2019-3887 (GCVE-0-2019-3887)

Vulnerability from cvelistv5 – Published: 2019-04-09 00:00 – Updated: 2024-08-04 19:19

Summary

Severity

6.7 (Medium)


                        
                          CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:H

CWE

CWE-863

Assigner

redhat

References

8 references

URL	Tags
http://www.securityfocus.com/bid/107850	vdb-entry
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://usn.ubuntu.com/3980-1/	vendor-advisory
https://usn.ubuntu.com/3979-1/	vendor-advisory
https://usn.ubuntu.com/3980-2/	vendor-advisory
https://access.redhat.com/errata/RHSA-2019:2703	vendor-advisory
https://access.redhat.com/errata/RHSA-2019:2741	vendor-advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2…

Impacted products

1 product

Vendor	Product	Version
The Linux Foundation	Kernel	Affected: from 4.16

Show details on NVD website

JSON

To clipboard

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usn-3980-2

Vulnerability from osv_ubuntu

Published

2019-05-14 22:45

Modified

2026-06-01 07:03

Summary

linux-hwe, linux-azure vulnerabilities

Details

USN-3980-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.10. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 18.10 for Ubuntu 18.04 LTS.

Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan Horea Lutas, Andrei Lutas, Volodymyr Pikhur, Stephan van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, Cristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss discovered that memory previously stored in microarchitectural fill buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2018-12130)

Brandon Falk, Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Stephan van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida discovered that memory previously stored in microarchitectural load ports of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2018-12127)

Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Marina Minkin, Daniel Moghimi, Moritz Lipp, Michael Schwarz, Jo Van Bulck, Daniel Genkin, Daniel Gruss, Berk Sunar, Frank Piessens, and Yuval Yarom discovered that memory previously stored in microarchitectural store buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2018-12126)

Vasily Averin and Evgenii Shatokhin discovered that a use-after-free vulnerability existed in the NFS41+ subsystem when multiple network namespaces are in use. A local attacker in a container could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-16884)

Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Volodrmyr Pikhur, Moritz Lipp, Michael Schwarz, Daniel Gruss, Stephan van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida discovered that uncacheable memory previously stored in microarchitectural buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2019-11091)

Matteo Croce, Natale Vinto, and Andrea Spagnolo discovered that the cgroups subsystem of the Linux kernel did not properly account for SCTP socket buffers. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-3874)

Alex Williamson discovered that the vfio subsystem of the Linux kernel did not properly limit DMA mappings. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-3882)

Marc Orr discovered that the KVM hypervisor implementation in the Linux kernel did not properly restrict APIC MSR register values when nested virtualization is used. An attacker in a guest vm could use this to cause a denial of service (host OS crash). (CVE-2019-3887)

Hugues Anguelkov discovered that the Broadcom Wifi driver in the Linux kernel contained a heap buffer overflow. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-9500)

Hugues Anguelkov discovered that the Broadcom Wifi driver in the Linux kernel did not properly prevent remote firmware events from being processed for USB Wifi devices. A physically proximate attacker could use this to send firmware events to the device. (CVE-2019-9503)

References

URL

Type

	https://ubuntu.com/security/notices/USN-3980-2	ADVISORY
	https://ubuntu.com/security/CVE-2018-12126	REPORT
	https://ubuntu.com/security/CVE-2018-12127	REPORT
	https://ubuntu.com/security/CVE-2018-12130	REPORT
	https://ubuntu.com/security/CVE-2018-16884	REPORT
	https://ubuntu.com/security/CVE-2019-3874	REPORT
	https://ubuntu.com/security/CVE-2019-3882	REPORT
	https://ubuntu.com/security/CVE-2019-3887	REPORT
	https://ubuntu.com/security/CVE-2019-9500	REPORT
	https://ubuntu.com/security/CVE-2019-9503	REPORT
	https://ubuntu.com/security/CVE-2019-11091	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2018-12126",
              "severity": [
                {
                  "score": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2018-12127",
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                {
                  "score": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2018-12130",
              "severity": [
                {
                  "score": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2018-16884",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
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              ]
            },
            {
              "id": "CVE-2019-3874",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
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                  "type": "CVSS_V3"
                },
                {
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                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
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            {
              "id": "CVE-2019-3882",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
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              ]
            },
            {
              "id": "CVE-2019-3887",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
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            {
              "id": "CVE-2019-9500",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
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                  "type": "CVSS_V3"
                },
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                  "type": "Ubuntu"
                }
              ]
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            {
              "id": "CVE-2019-9503",
              "severity": [
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                  "type": "CVSS_V3"
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                  "type": "CVSS_V3"
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      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "linux-hwe",
        "purl": "pkg:deb/ubuntu/linux-hwe@4.18.0-20.21~18.04.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.18.0-20.21~18.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.18.0-13.14~18.04.1",
        "4.18.0-14.15~18.04.1",
        "4.18.0-15.16~18.04.1",
        "4.18.0-16.17~18.04.1",
        "4.18.0-17.18~18.04.1",
        "4.18.0-18.19~18.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-3980-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.10.\nThis update provides the corresponding updates for the Linux\nHardware Enablement (HWE) kernel from Ubuntu 18.10 for Ubuntu\n18.04 LTS.\n\nKe Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan\nHorea Lutas, Andrei Lutas, Volodymyr Pikhur, Stephan van Schaik, Alyssa\nMilburn, Sebastian \u00d6sterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos,\nCristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss\ndiscovered that memory previously stored in microarchitectural fill buffers\nof an Intel CPU core may be exposed to a malicious process that is\nexecuting on the same CPU core. A local attacker could use this to expose\nsensitive information. (CVE-2018-12130)\n\nBrandon Falk, Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Stephan\nvan Schaik, Alyssa Milburn, Sebastian \u00d6sterlund, Pietro Frigo, Kaveh\nRazavi, Herbert Bos, and Cristiano Giuffrida discovered that memory\npreviously stored in microarchitectural load ports of an Intel CPU core may\nbe exposed to a malicious process that is executing on the same CPU core. A\nlocal attacker could use this to expose sensitive information.\n(CVE-2018-12127)\n\nKe Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Marina Minkin, Daniel\nMoghimi, Moritz Lipp, Michael Schwarz, Jo Van Bulck, Daniel Genkin, Daniel\nGruss, Berk Sunar, Frank Piessens, and Yuval Yarom discovered that memory\npreviously stored in microarchitectural store buffers of an Intel CPU core\nmay be exposed to a malicious process that is executing on the same CPU\ncore. A local attacker could use this to expose sensitive information.\n(CVE-2018-12126)\n\nVasily Averin and Evgenii Shatokhin discovered that a use-after-free\nvulnerability existed in the NFS41+ subsystem when multiple network\nnamespaces are in use. A local attacker in a container could use this to\ncause a denial of service (system crash) or possibly execute arbitrary\ncode. (CVE-2018-16884)\n\nKe Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Volodrmyr Pikhur,\nMoritz Lipp, Michael Schwarz, Daniel Gruss, Stephan van Schaik, Alyssa\nMilburn, Sebastian \u00d6sterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and\nCristiano Giuffrida discovered that uncacheable memory previously stored in\nmicroarchitectural buffers of an Intel CPU core may be exposed to a\nmalicious process that is executing on the same CPU core. A local attacker\ncould use this to expose sensitive information. (CVE-2019-11091)\n\nMatteo Croce, Natale Vinto, and Andrea Spagnolo discovered that the cgroups\nsubsystem of the Linux kernel did not properly account for SCTP socket\nbuffers. A local attacker could use this to cause a denial of service\n(system crash). (CVE-2019-3874)\n\nAlex Williamson discovered that the vfio subsystem of the Linux kernel did\nnot properly limit DMA mappings. A local attacker could use this to cause a\ndenial of service (memory exhaustion). (CVE-2019-3882)\n\nMarc Orr discovered that the KVM hypervisor implementation in the Linux\nkernel did not properly restrict APIC MSR register values when nested\nvirtualization is used. An attacker in a guest vm could use this to cause a\ndenial of service (host OS crash). (CVE-2019-3887)\n\nHugues Anguelkov discovered that the Broadcom Wifi driver in the Linux\nkernel contained a heap buffer overflow. A physically proximate attacker\ncould use this to cause a denial of service (system crash) or possibly\nexecute arbitrary code. (CVE-2019-9500)\n\nHugues Anguelkov discovered that the Broadcom Wifi driver in the Linux\nkernel did not properly prevent remote firmware events from being processed\nfor USB Wifi devices. A physically proximate attacker could use this to\nsend firmware events to the device. (CVE-2019-9503)\n",
  "id": "USN-3980-2",
  "modified": "2026-06-01T07:03:49Z",
  "published": "2019-05-14T22:45:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3980-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-12126"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-12127"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-12130"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-16884"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-3874"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-3882"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-3887"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-9500"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-9503"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-11091"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux-hwe, linux-azure vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2018-12126",
    "UBUNTU-CVE-2018-12127",
    "UBUNTU-CVE-2018-12130",
    "UBUNTU-CVE-2018-16884",
    "UBUNTU-CVE-2019-3874",
    "UBUNTU-CVE-2019-3882",
    "UBUNTU-CVE-2019-3887",
    "UBUNTU-CVE-2019-9500",
    "UBUNTU-CVE-2019-9503",
    "UBUNTU-CVE-2019-11091"
  ]
}

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.

Detection rules are retrieved from Rulezet.

Action not permitted

ubuntu-cve-2019-3887

Vulnerability from osv_ubuntu

CVE-2019-3887 (GCVE-0-2019-3887)

usn-3980-2

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature