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OpenAdvisories
Unscored USN-4463-1 2 CVEs

linux, linux-aws, linux-kvm, linux-lts-xenial, linux-raspi2, linux-snapdragon vulnerabilities

Published Aug 18, 2020 · Updated Jun 3, 2026

Summary

It was discovered that the bcache subsystem in the Linux kernel did not
properly release a lock in some error conditions. A local attacker could
possibly use this to cause a denial of service. (CVE-2020-12771)

Kyungtae Kim discovered that the USB testing driver in the Linux kernel did
not properly deallocate memory on disconnect events. A physically proximate
attacker could use this to cause a denial of service (memory exhaustion).
(CVE-2020-15393)

Fixed packages 7

ReleasePackageFixed in
Ubuntu · 16.04 LTS 16.04:LTS linux 4.4.0-187.217
Ubuntu · 16.04 LTS 16.04:LTS linux-aws 4.4.0-1112.124
Ubuntu · 16.04 LTS 16.04:LTS linux-kvm 4.4.0-1078.85
Ubuntu · 16.04 LTS 16.04:LTS linux-raspi2 4.4.0-1137.146
Ubuntu · 16.04 LTS 16.04:LTS linux-snapdragon 4.4.0-1141.149
Ubuntu · Pro 14.04 LTS Pro:14.04:LTS linux-aws 4.4.0-1076.80
Ubuntu · Pro 14.04 LTS Pro:14.04:LTS linux-lts-xenial 4.4.0-187.217~14.04.1

Vulnerabilities 2

References

  • report
    https://ubuntu.com/security/CVE-2020-12771
  • report
    https://ubuntu.com/security/CVE-2020-15393