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OpenAdvisories
Unscored USN-4525-1 5 CVEs

linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities

Published Sep 24, 2020 · Updated Jun 3, 2026

Summary

It was discovered that the AMD Cryptographic Coprocessor device driver in
the Linux kernel did not properly deallocate memory in some situations. A
local attacker could use this to cause a denial of service (memory
exhaustion). (CVE-2019-18808)

It was discovered that the Conexant 23885 TV card device driver for the
Linux kernel did not properly deallocate memory in some error conditions. A
local attacker could use this to cause a denial of service (memory
exhaustion). (CVE-2019-19054)

It was discovered that the VFIO PCI driver in the Linux kernel did not
properly handle attempts to access disabled memory spaces. A local attacker
could use this to cause a denial of service (system crash).
(CVE-2020-12888)

It was discovered that the state of network RNG in the Linux kernel was
potentially observable. A remote attacker could use this to expose
sensitive information. (CVE-2020-16166)

It was discovered that the NFS client implementation in the Linux kernel
did not properly perform bounds checking before copying security labels in
some situations. A local attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2020-25212)

Fixed packages 13

ReleasePackageFixed in
Ubuntu · 18.04 LTS 18.04:LTS linux-aws-5.4 5.4.0-1025.25~18.04.1
Ubuntu · 18.04 LTS 18.04:LTS linux-azure-5.4 5.4.0-1026.26~18.04.1
Ubuntu · 18.04 LTS 18.04:LTS linux-gcp-5.4 5.4.0-1025.25~18.04.1
Ubuntu · 18.04 LTS 18.04:LTS linux-hwe-5.4 5.4.0-48.52~18.04.1
Ubuntu · 18.04 LTS 18.04:LTS linux-oracle-5.4 5.4.0-1025.25~18.04.1
Ubuntu · 18.04 LTS 18.04:LTS linux-raspi-5.4 5.4.0-1019.21~18.04.1
Ubuntu · 20.04 LTS 20.04:LTS linux 5.4.0-48.52
Ubuntu · 20.04 LTS 20.04:LTS linux-aws 5.4.0-1025.25
Ubuntu · 20.04 LTS 20.04:LTS linux-azure 5.4.0-1026.26
Ubuntu · 20.04 LTS 20.04:LTS linux-gcp 5.4.0-1025.25
Ubuntu · 20.04 LTS 20.04:LTS linux-kvm 5.4.0-1024.24
Ubuntu · 20.04 LTS 20.04:LTS linux-oracle 5.4.0-1025.25
Ubuntu · 20.04 LTS 20.04:LTS linux-raspi 5.4.0-1019.21

Vulnerabilities 5

References

  • report
    https://ubuntu.com/security/CVE-2019-18808
  • report
    https://ubuntu.com/security/CVE-2019-19054
  • report
    https://ubuntu.com/security/CVE-2020-12888
  • report
    https://ubuntu.com/security/CVE-2020-16166
  • report
    https://ubuntu.com/security/CVE-2020-25212