usn-4255-2
Vulnerability from osv_ubuntu
Published
2020-01-28 23:07
Modified
2026-06-03 10:45
Summary
linux-hwe, linux-aws-hwe vulnerabilities
Details

USN-4255-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 18.04 LTS for Ubuntu 16.04 LTS.

It was discovered that the Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors. A local attacker could use this to expose sensitive information. (CVE-2019-14615)

It was discovered that a race condition can lead to a use-after-free while destroying GEM contexts in the i915 driver for the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-7053)

References
To clipboard 

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        "4.15.0-24.26~16.04.1",
        "4.15.0-29.31~16.04.1",
        "4.15.0-30.32~16.04.1",
        "4.15.0-32.35~16.04.1",
        "4.15.0-33.36~16.04.1",
        "4.15.0-34.37~16.04.1",
        "4.15.0-36.39~16.04.1",
        "4.15.0-38.41~16.04.1",
        "4.15.0-39.42~16.04.1",
        "4.15.0-42.45~16.04.1",
        "4.15.0-43.46~16.04.1",
        "4.15.0-45.48~16.04.1",
        "4.15.0-46.49~16.04.1",
        "4.15.0-47.50~16.04.1",
        "4.15.0-48.51~16.04.1",
        "4.15.0-50.54~16.04.1",
        "4.15.0-51.55~16.04.1",
        "4.15.0-52.56~16.04.1",
        "4.15.0-54.58~16.04.1",
        "4.15.0-55.60~16.04.2",
        "4.15.0-58.64~16.04.1",
        "4.15.0-60.67~16.04.1",
        "4.15.0-62.69~16.04.1",
        "4.15.0-64.73~16.04.1",
        "4.15.0-65.74~16.04.1",
        "4.15.0-66.75~16.04.1",
        "4.15.0-69.78~16.04.1",
        "4.15.0-70.79~16.04.1",
        "4.15.0-72.81~16.04.1",
        "4.15.0-74.83~16.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-4255-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04\nLTS. This update provides the corresponding updates for the Linux\nHardware Enablement (HWE) kernel from Ubuntu 18.04 LTS for Ubuntu\n16.04 LTS.\n\nIt was discovered that the Linux kernel did not properly clear data\nstructures on context switches for certain Intel graphics processors. A\nlocal attacker could use this to expose sensitive information.\n(CVE-2019-14615)\n\nIt was discovered that a race condition can lead to a use-after-free while\ndestroying GEM contexts in the i915 driver for the Linux kernel. A local\nattacker could use this to cause a denial of service (system crash) or\npossibly execute arbitrary code. (CVE-2020-7053)\n",
  "id": "USN-4255-2",
  "modified": "2026-06-03T10:45:20Z",
  "published": "2020-01-28T23:07:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4255-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-14615"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-7053"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux-hwe, linux-aws-hwe vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2019-14615",
    "UBUNTU-CVE-2020-7053"
  ]
}



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Tags
Taxonomy of the tags.





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.