lsn-0069-1
Vulnerability from osv_ubuntu
Published
2020-07-27 06:24
Modified
2026-06-03 10:46
Summary
Kernel Live Patch Security Notice
Details

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. (CVE-2019-19462)

Fan Yang discovered that the mremap implementation in the Linux kernel did not properly handle DAX Huge Pages. A local attacker with access to DAX storage could use this to gain administrative privileges. (CVE-2020-10757)

It was discovered that the DesignWare SPI controller driver in the Linux kernel contained a race condition. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2020-12769)

In the Linux kernel before 5.4.16, a race condition in tty->disc_data handling in the slip and slcan line discipline could lead to a use-after-free, aka CID-0ace17d56824. This affects drivers/net/slip/slip.c and drivers/net/can/slcan.c. (CVE-2020-14416)

References
To clipboard 

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  ],
  "aliases": [],
  "details": "Relay_open in kernel/relay.c in the Linux kernel through 5.4.1 allows local\nusers to cause a denial of service (such as relay blockage) by triggering a\nNULL alloc_percpu result. (CVE-2019-19462)\n\nFan Yang discovered that the mremap implementation in the Linux kernel did\nnot properly handle DAX Huge Pages. A local attacker with access to DAX\nstorage could use this to gain administrative privileges. (CVE-2020-10757)\n\nIt was discovered that the DesignWare SPI controller driver in the Linux\nkernel contained a race condition. A local attacker could possibly use this\nto cause a denial of service (system crash). (CVE-2020-12769)\n\nIn the Linux kernel before 5.4.16, a race condition in tty-\u003edisc_data\nhandling in the slip and slcan line discipline could lead to a\nuse-after-free, aka CID-0ace17d56824. This affects drivers/net/slip/slip.c\nand drivers/net/can/slcan.c. (CVE-2020-14416)",
  "id": "LSN-0069-1",
  "modified": "2026-06-03T10:46:31Z",
  "published": "2020-07-27T06:24:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/LSN-0069-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-10757"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12769"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-14416"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "Kernel Live Patch Security Notice",
  "upstream": [
    "UBUNTU-CVE-2020-10757",
    "UBUNTU-CVE-2020-12769",
    "UBUNTU-CVE-2020-14416"
  ]
}



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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.