usn-2843-2
Vulnerability from osv_ubuntu
Published
2015-12-17 19:24
Modified
2026-06-03 10:45
Summary
linux-lts-wily vulnerabilities
Details

Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly catch Debug exceptions on AMD processors. An attacker in a guest virtual machine could use this to cause a denial of service (system crash) in the host OS. (CVE-2015-8104)

郭永刚 discovered that the ppp implementation in the Linux kernel did not ensure that certain slot numbers are valid. A local attacker with the privilege to call ioctl() on /dev/ppp could cause a denial of service (system crash). (CVE-2015-7799)

Dmitry Vyukov discovered that the Linux kernel's keyring handler attempted to garbage collect incompletely instantiated keys. A local unprivileged attacker could use this to cause a denial of service (system crash). (CVE-2015-7872)

It was discovered that the virtual video osd test driver in the Linux kernel did not properly initialize data structures. A local attacker could use this to obtain sensitive information from the kernel. (CVE-2015-7884)

It was discovered that the driver for Digi Neo and ClassicBoard devices did not properly initialize data structures. A local attacker could use this to obtain sensitive information from the kernel. (CVE-2015-7885)

References
To clipboard 

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  "affected": [
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              "id": "CVE-2015-7799",
              "severity": [
                {
                  "score": "negligible",
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            {
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              "severity": [
                {
                  "score": "CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
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                {
                  "score": "low",
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                }
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            },
            {
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        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "linux-lts-wily",
        "purl": "pkg:deb/ubuntu/linux-lts-wily@4.2.0-21.25~14.04.1?arch=source\u0026distro=trusty"
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        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.2.0-21.25~14.04.1"
            }
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          "type": "ECOSYSTEM"
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      "versions": [
        "4.2.0-18.22~14.04.1",
        "4.2.0-19.23~14.04.1"
      ]
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  ],
  "aliases": [],
  "details": "Jan Beulich discovered that the KVM svm hypervisor implementation in the\nLinux kernel did not properly catch Debug exceptions on AMD processors. An\nattacker in a guest virtual machine could use this to cause a denial of\nservice (system crash) in the host OS. (CVE-2015-8104)\n\n\u90ed\u6c38\u521a discovered that the ppp implementation in the Linux kernel did\nnot ensure that certain slot numbers are valid. A local attacker with the\nprivilege to call ioctl() on /dev/ppp could cause a denial of service\n(system crash). (CVE-2015-7799)\n\nDmitry Vyukov discovered that the Linux kernel\u0027s keyring handler attempted\nto garbage collect incompletely instantiated keys. A local unprivileged\nattacker could use this to cause a denial of service (system crash).\n(CVE-2015-7872)\n\nIt was discovered that the virtual video osd test driver in the Linux\nkernel did not properly initialize data structures. A local attacker could\nuse this to obtain sensitive information from the kernel. (CVE-2015-7884)\n\nIt was discovered that the driver for Digi Neo and ClassicBoard devices did\nnot properly initialize data structures. A local attacker could use this to\nobtain sensitive information from the kernel. (CVE-2015-7885)\n",
  "id": "USN-2843-2",
  "modified": "2026-06-03T10:45:13Z",
  "published": "2015-12-17T19:24:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-2843-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-7799"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-7872"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-7884"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-7885"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-8104"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux-lts-wily vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2015-7799",
    "UBUNTU-CVE-2015-7872",
    "UBUNTU-CVE-2015-7884",
    "UBUNTU-CVE-2015-7885",
    "UBUNTU-CVE-2015-8104"
  ]
}



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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.


Detection rules are retrieved from Rulezet.