usn-4678-1
Vulnerability from osv_ubuntu
Published
2021-01-06 22:27
Modified
2026-02-10 04:42
Summary
linux, linux-hwe-5.8, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-oracle, linux-raspi vulnerabilities
Details

It was discovered that the AMD Running Average Power Limit (RAPL) driver in the Linux kernel did not properly restrict access to power data. A local attacker could possibly use this to expose sensitive information. (CVE-2020-12912)

Jann Horn discovered that the io_uring subsystem in the Linux kernel did not properly perform reference counting in some situations. A local attacker could use this to expose sensitive information or possibly escalate privileges. (CVE-2020-29534)

References
To clipboard 

{
  "affected": [
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      "database_specific": {
        "cves_map": {
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              "id": "CVE-2020-12912",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-29534",
              "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": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
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        "name": "linux-hwe-5.8",
        "purl": "pkg:deb/ubuntu/linux-hwe-5.8@5.8.0-34.37~20.04.2?arch=source\u0026distro=focal"
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  ],
  "aliases": [],
  "details": "It was discovered that the AMD Running Average Power Limit (RAPL) driver in\nthe Linux kernel did not properly restrict access to power data. A local\nattacker could possibly use this to expose sensitive information.\n(CVE-2020-12912)\n\nJann Horn discovered that the io_uring subsystem in the Linux kernel did\nnot properly perform reference counting in some situations. A local\nattacker could use this to expose sensitive information or possibly\nescalate privileges. (CVE-2020-29534)\n",
  "id": "USN-4678-1",
  "modified": "2026-02-10T04:42:00Z",
  "published": "2021-01-06T22:27:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4678-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12912"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-29534"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux, linux-hwe-5.8, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-oracle, linux-raspi vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2020-12912",
    "UBUNTU-CVE-2020-29534"
  ]
}



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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.