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USN-4711-1 Not scored

linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-gke-4.15, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities

It was discovered that the LIO SCSI target implementation in the Linux kernel performed insufficient identifier checking in certain XCOPY requests. An attacker with access to at least one LUN in a multiple backstore environment could use this to expose sensitive information or modify data. (CVE-2020-28374) Kiyin (尹亮) discovered that the perf subsystem in the Linux kernel did not properly deallocate memory in some situations. A privileged attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2020-25704)

Exploit probability Not scored
Published February 5, 2021
Required by Not available
Last source change June 3, 2026

02 / AFFECTED SOFTWARE

Affected packages

Ubuntu:16.04:LTS linux-aws-hwe

36 explicit affected versions

Ubuntu:16.04:LTS linux-azure

67 explicit affected versions

Ubuntu:16.04:LTS linux-gcp

59 explicit affected versions

Ubuntu:16.04:LTS linux-oracle

35 explicit affected versions

Ubuntu:18.04:LTS linux-aws

56 explicit affected versions

Ubuntu:18.04:LTS linux-azure-4.15

13 explicit affected versions

Ubuntu:18.04:LTS linux-gcp-4.15

12 explicit affected versions

Ubuntu:18.04:LTS linux-gke-4.15

31 explicit affected versions

Ubuntu:18.04:LTS linux-kvm

51 explicit affected versions

Ubuntu:18.04:LTS linux-oracle

37 explicit affected versions

Ubuntu:18.04:LTS linux-raspi2

54 explicit affected versions

Ubuntu:18.04:LTS linux-snapdragon

34 explicit affected versions

Ubuntu:Pro:14.04:LTS linux-azure

44 explicit affected versions

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities USN-4711-1

It was discovered that the LIO SCSI target implementation in the Linux kernel performed insufficient identifier checking in certain XCOPY requests. An attacker with access to at least one LUN in a multiple backstore environment could use this to expose sensitive information or modify data. (CVE-2020-28374) Kiyin (尹亮) discovered that the perf subsystem in the Linux kernel did not properly deallocate memory in some situations. A privileged attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2020-25704)

View original source

05 / REFERENCES

Further evidence