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OpenAdvisories
Unscored USN-4711-1 2 CVEs

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

Published Feb 5, 2021 · Updated Jun 3, 2026

Summary

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)

Fixed packages 13

ReleasePackageFixed in
Ubuntu · 16.04 LTS 16.04:LTS linux-aws-hwe 4.15.0-1093.99~16.04.1
Ubuntu · 16.04 LTS 16.04:LTS linux-azure 4.15.0-1106.118~16.04.1
Ubuntu · 16.04 LTS 16.04:LTS linux-gcp 4.15.0-1092.105~16.04.1
Ubuntu · 16.04 LTS 16.04:LTS linux-oracle 4.15.0-1064.71~16.04.1
Ubuntu · 18.04 LTS 18.04:LTS linux-aws 4.15.0-1093.99
Ubuntu · 18.04 LTS 18.04:LTS linux-azure-4.15 4.15.0-1106.118
Ubuntu · 18.04 LTS 18.04:LTS linux-gcp-4.15 4.15.0-1092.105
Ubuntu · 18.04 LTS 18.04:LTS linux-gke-4.15 4.15.0-1078.83
Ubuntu · 18.04 LTS 18.04:LTS linux-kvm 4.15.0-1084.86
Ubuntu · 18.04 LTS 18.04:LTS linux-oracle 4.15.0-1064.71
Ubuntu · 18.04 LTS 18.04:LTS linux-raspi2 4.15.0-1078.83
Ubuntu · 18.04 LTS 18.04:LTS linux-snapdragon 4.15.0-1095.104
Ubuntu · Pro 14.04 LTS Pro:14.04:LTS linux-azure 4.15.0-1106.118~14.04.1

Vulnerabilities 2

References

  • report
    https://ubuntu.com/security/CVE-2020-25704
  • report
    https://ubuntu.com/security/CVE-2020-28374