usn-2979-1
Vulnerability from osv_ubuntu
Published
2016-05-16 18:45
Modified
2026-04-22 07:36
Summary
linux vulnerabilities
Details

David Matlack discovered that the Kernel-based Virtual Machine (KVM) implementation in the Linux kernel did not properly restrict variable Memory Type Range Registers (MTRR) in KVM guests. A privileged user in a guest VM could use this to cause a denial of service (system crash) in the host, expose sensitive information from the host, or possibly gain administrative privileges in the host. (CVE-2016-3713)

Philip Pettersson discovered that the Linux kernel's ASN.1 DER decoder did not properly process certificate files with tags of indefinite length. A local unprivileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2016-0758)

References
To clipboard 

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              "id": "CVE-2016-0758",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2016-3713",
              "severity": [
                {
                  "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:16.04:LTS"
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      "versions": [
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        "4.4.0-21.37",
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  ],
  "aliases": [],
  "details": "David Matlack discovered that the Kernel-based Virtual Machine (KVM)\nimplementation in the Linux kernel did not properly restrict variable\nMemory Type Range Registers (MTRR) in KVM guests. A privileged user in a\nguest VM could use this to cause a denial of service (system crash) in the\nhost, expose sensitive information from the host, or possibly gain\nadministrative privileges in the host. (CVE-2016-3713)\n\nPhilip Pettersson discovered that the Linux kernel\u0027s ASN.1 DER decoder did\nnot properly process certificate files with tags of indefinite length. A\nlocal unprivileged attacker could use this to cause a denial of service\n(system crash) or possibly execute arbitrary code with administrative\nprivileges. (CVE-2016-0758)\n",
  "id": "USN-2979-1",
  "modified": "2026-04-22T07:36:33Z",
  "published": "2016-05-16T18:45:59Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-2979-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-0758"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-3713"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2016-0758",
    "UBUNTU-CVE-2016-3713"
  ]
}



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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.