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High USN-6084-1 5 CVEs

linux-gcp-4.15, linux-oracle vulnerabilities

Published May 17, 2023 · Updated Oct 23, 2026

Summary

Jordy Zomer and Alexandra Sandulescu discovered that the Linux kernel did
not properly implement speculative execution barriers in usercopy functions
in certain situations. A local attacker could use this to expose sensitive
information (kernel memory). (CVE-2023-0459)

Xingyuan Mo discovered that the x86 KVM implementation in the Linux kernel
did not properly initialize some data structures. A local attacker could
use this to expose sensitive information (kernel memory). (CVE-2023-1513)

It was discovered that a use-after-free vulnerability existed in the iSCSI
TCP implementation in the Linux kernel. A local attacker could possibly use
this to cause a denial of service (system crash). (CVE-2023-2162)

It was discovered that the NET/ROM protocol implementation in the Linux
kernel contained a race condition in some situations, leading to a use-
after-free vulnerability. A local attacker could use this to cause a denial
of service (system crash) or possibly execute arbitrary code.
(CVE-2023-32269)

Duoming Zhou discovered that a race condition existed in the infrared
receiver/transceiver driver in the Linux kernel, leading to a use-after-
free vulnerability. A privileged attacker could use this to cause a denial
of service (system crash) or possibly execute arbitrary code.
(CVE-2023-1118)

Fixed packages 3

ReleasePackageFixed in
Ubuntu · 18.04 LTS 18.04:LTS linux-gcp-4.15 4.15.0-1150.166
Ubuntu · 18.04 LTS 18.04:LTS linux-oracle 4.15.0-1119.130
Ubuntu · Pro 16.04 LTS Pro:16.04:LTS linux-oracle 4.15.0-1119.130~16.04.1

Vulnerabilities 5

References

  • report
    https://ubuntu.com/security/CVE-2023-0459
  • report
    https://ubuntu.com/security/CVE-2023-1118
  • report
    https://ubuntu.com/security/CVE-2023-1513
  • report
    https://ubuntu.com/security/CVE-2023-2162
  • report
    https://ubuntu.com/security/CVE-2023-32269