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CVE-2020-12768 (GCVE-0-2020-12768)

Vulnerability from cvelistv5 – Published: 2020-05-09 20:16 – Updated: 2024-08-04 12:04 Disputed
VLAI
Summary
An issue was discovered in the Linux kernel before 5.6. svm_cpu_uninit in arch/x86/kvm/svm.c has a memory leak, aka CID-d80b64ff297e. NOTE: third parties dispute this issue because it's a one-time leak at the boot, the size is negligible, and it can't be triggered at will
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • n/a
Assigner
References
URL Tags
https://git.kernel.org/pub/scm/linux/kernel/git/t… x_refsource_CONFIRM
https://cdn.kernel.org/pub/linux/kernel/v5.x/Chan… x_refsource_CONFIRM
https://bugzilla.suse.com/show_bug.cgi?id=1171736#c3 x_refsource_MISC
https://www.debian.org/security/2020/dsa-4699 vendor-advisoryx_refsource_DEBIAN
https://usn.ubuntu.com/4413-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4411-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4412-1/ vendor-advisoryx_refsource_UBUNTU
Show details on NVD website
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      "current_release_date": "2026-06-28T07:31:48+00:00",
      "cve": "CVE-2020-12768",
      "id": "CVE-2020-12768",
      "initial_release_date": "2020-02-21T00:00:00+00:00",
      "product_status:known_affected": "48",
      "product_status:known_not_affected": "56",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: memory leak in svm_cpu_init function in arch/x86/kvm/svm.c",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-12768.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-01T01:45:01Z",
      "cve": "CVE-2020-12768",
      "id": "CVE-2020-12768",
      "initial_release_date": "2023-02-15T03:58:45Z",
      "product_status:known_affected": "69",
      "product_status:known_not_affected": "257",
      "product_status:recommended": "333",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2020-12768",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2020-12768.json",
      "version": "18"
    }
  }
}



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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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.