usn-4389-1
Vulnerability from osv_ubuntu
Published
2020-06-10 17:26
Modified
2026-06-03 10:45
Summary
linux, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-oracle, linux-raspi, linux-riscv vulnerabilities
Details

It was discovered that the F2FS file system implementation in the Linux kernel did not properly perform bounds checking on xattrs in some situations. A local attacker could possibly use this to expose sensitive information (kernel memory). (CVE-2020-0067)

It was discovered that memory contents previously stored in microarchitectural special registers after RDRAND, RDSEED, and SGX EGETKEY read operations on Intel client and Xeon E3 processors may be briefly exposed to processes on the same or different processor cores. A local attacker could use this to expose sensitive information. (CVE-2020-0543)

Piotr Krysiuk discovered that race conditions existed in the file system implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2020-12114)

It was discovered that the USB susbsystem's scatter-gather implementation in the Linux kernel did not properly take data references in some situations, leading to a use-after-free. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-12464)

Bui Quang Minh discovered that the XDP socket implementation in the Linux kernel did not properly validate meta-data passed from user space, leading to an out-of-bounds write vulnerability. A local attacker with the CAP_NET_ADMIN capability could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-12659)

Dmitry Vyukov discovered that the SELinux netlink security hook in the Linux kernel did not validate messages in some situations. A privileged attacker could use this to bypass SELinux netlink restrictions. (CVE-2020-10751)

References
To clipboard 

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      "package": {
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        "name": "linux-riscv",
        "purl": "pkg:deb/ubuntu/linux-riscv@5.4.0-27.31?arch=source\u0026distro=focal"
      },
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        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.0-27.31"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.4.0-24.28",
        "5.4.0-26.30"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that the F2FS file system implementation in the Linux\nkernel did not properly perform bounds checking on xattrs in some\nsituations. A local attacker could possibly use this to expose sensitive\ninformation (kernel memory). (CVE-2020-0067)\n\nIt was discovered that memory contents previously stored in\nmicroarchitectural special registers after RDRAND, RDSEED, and SGX EGETKEY\nread operations on Intel client and Xeon E3 processors may be briefly\nexposed to processes on the same or different processor cores. A local\nattacker could use this to expose sensitive information. (CVE-2020-0543)\n\nPiotr Krysiuk discovered that race conditions existed in the file system\nimplementation in the Linux kernel. A local attacker could use this to\ncause a denial of service (system crash). (CVE-2020-12114)\n\nIt was discovered that the USB susbsystem\u0027s scatter-gather implementation\nin the Linux kernel did not properly take data references in some\nsituations, leading to a use-after-free. A physically proximate attacker\ncould use this to cause a denial of service (system crash) or possibly\nexecute arbitrary code. (CVE-2020-12464)\n\nBui Quang Minh discovered that the XDP socket implementation in the Linux\nkernel did not properly validate meta-data passed from user space, leading\nto an out-of-bounds write vulnerability. A local attacker with the\nCAP_NET_ADMIN capability could use this to cause a denial of service\n(system crash) or possibly execute arbitrary code. (CVE-2020-12659)\n\nDmitry Vyukov discovered that the SELinux netlink security hook in the\nLinux kernel did not validate messages in some situations. A privileged\nattacker could use this to bypass SELinux netlink restrictions.\n(CVE-2020-10751)\n",
  "id": "USN-4389-1",
  "modified": "2026-06-03T10:45:21Z",
  "published": "2020-06-10T17:26:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4389-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-0067"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-0543"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-10751"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12114"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12464"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12659"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-oracle, linux-raspi, linux-riscv vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2020-0067",
    "UBUNTU-CVE-2020-0543",
    "UBUNTU-CVE-2020-10751",
    "UBUNTU-CVE-2020-12114",
    "UBUNTU-CVE-2020-12464",
    "UBUNTU-CVE-2020-12659"
  ]
}



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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.