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01 Record

CVE-2020-12768

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

UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector

02 Description

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

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.39% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 33.0% of scored records. A rank, not a probability.
NVD base score
5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2020-05-09 20:16Z6 YR AGO
Last updated
2024-08-04 12:04Z2 YR AGO
Reserved
2020-05-09
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-401Missing Release of Memory after Effective LifetimeVariant
  • CWE-772Missing Release of Resource after Effective LifetimeBase
Data version
5.1
Document digest
cadb5adfee22c4e36ad983ef9968cb91d88b279752a15270b13da277cb6c166c

05 Affected products

VendorProductVersionsPlatforms
canonicalubuntu_linuxNot specified—
debiandebian_linuxNot specified—
linuxlinux_kernelNot specified—
redhatenterprise_linuxNot specified—
redhatenterprise_mrgNot specified—

06 References

07 Fixed in

Debian 12

  • linux
    Fixed in 5.6.7-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • linux
    Fixed in 5.6.7-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • linux
    Fixed in 5.6.7-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

  • linux-hwe-edge
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

  • linux-aws-5.0
    No fix yet
  • linux-aws-5.3
    Fixed in 5.3.0-1030.32~18.04.1
  • linux-azure
    No fix yet
  • linux-azure-5.3
    Fixed in 5.3.0-1032.33~18.04.1
  • linux-azure-edge
    No fix yet
  • linux-gcp
    No fix yet
  • linux-gcp-5.3
    Fixed in 5.3.0-1030.32~18.04.1
  • linux-gcp-edge
    No fix yet
  • linux-gke-5.0
    Fixed in 5.0.0-1043.44
  • linux-gke-5.3
    Fixed in 5.3.0-1030.32~18.04.1
  • linux-hwe
    Fixed in 5.3.0-62.56~18.04.1
  • linux-hwe-5.4
    Fixed in 5.4.0-40.44~18.04.1
  • linux-hwe-edge
    No fix yet
  • linux-oem-osp1
    Fixed in 5.0.0-1063.68
  • linux-oracle-5.0
    No fix yet
  • linux-oracle-5.3
    Fixed in 5.3.0-1028.30~18.04.1
  • linux-raspi2-5.3
    Fixed in 5.3.0-1028.30~18.04.2

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • linux
    Fixed in 5.4.0-40.44
  • linux-aws
    Fixed in 5.4.0-1018.18
  • linux-azure
    Fixed in 5.4.0-1020.20
  • linux-azure-fde
    No fix yet
  • linux-gcp
    Fixed in 5.4.0-1019.19
  • linux-gke
    No fix yet
  • linux-gkeop
    No fix yet
  • linux-gkeop-5.15
    No fix yet
  • linux-kvm
    Fixed in 5.4.0-1018.18
  • linux-oracle
    Fixed in 5.4.0-1019.19
  • linux-raspi
    Fixed in 5.4.0-1013.13
  • linux-raspi2
    No fix yet
  • linux-riscv
    Fixed in 5.4.0-28.32

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • linux-intel-iot-realtime
    No fix yet
  • linux-realtime
    No fix yet
  • linux-riscv
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • linux-raspi-realtime
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.