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OpenAdvisories
Medium USN-4411-1 5 CVEs

linux, linux-aws, inux-azure, linux-gcp, linux-kvm, linux-oracle, linux-raspi, linux-riscv vulnerabilities

Published Jul 6, 2020 · Updated Jun 3, 2026

Summary

It was discovered that the elf handling code in the Linux kernel did not
initialize memory before using it in certain situations. A local attacker
could use this to possibly expose sensitive information (kernel memory).
(CVE-2020-10732)

Matthew Sheets discovered that the SELinux network label handling
implementation in the Linux kernel could be coerced into de-referencing a
NULL pointer. A remote attacker could use this to cause a denial of service
(system crash). (CVE-2020-10711)

It was discovered that the SCSI generic (sg) driver in the Linux kernel did
not properly handle certain error conditions correctly. A local privileged
attacker could use this to cause a denial of service (system crash).
(CVE-2020-12770)

It was discovered that the USB Gadget device driver in the Linux kernel did
not validate arguments passed from configfs in some situations. A local
attacker could possibly use this to cause a denial of service (system
crash) or possibly expose sensitive information. (CVE-2020-13143)

It was discovered that the KVM implementation in the Linux kernel did not
properly deallocate memory on initialization for some processors. A local
attacker could possibly use this to cause a denial of service.
(CVE-2020-12768)

Fixed packages 8

ReleasePackageFixed in
Ubuntu · 20.04 LTS 20.04:LTS linux 5.4.0-40.44
Ubuntu · 20.04 LTS 20.04:LTS linux-aws 5.4.0-1018.18
Ubuntu · 20.04 LTS 20.04:LTS linux-azure 5.4.0-1020.20
Ubuntu · 20.04 LTS 20.04:LTS linux-gcp 5.4.0-1019.19
Ubuntu · 20.04 LTS 20.04:LTS linux-kvm 5.4.0-1018.18
Ubuntu · 20.04 LTS 20.04:LTS linux-oracle 5.4.0-1019.19
Ubuntu · 20.04 LTS 20.04:LTS linux-raspi 5.4.0-1013.13
Ubuntu · 20.04 LTS 20.04:LTS linux-riscv 5.4.0-28.32

Vulnerabilities 5

References

  • report
    https://ubuntu.com/security/CVE-2020-10711
  • report
    https://ubuntu.com/security/CVE-2020-10732
  • report
    https://ubuntu.com/security/CVE-2020-12768
  • report
    https://ubuntu.com/security/CVE-2020-12770
  • report
    https://ubuntu.com/security/CVE-2020-13143