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OpenAdvisories
High USN-6127-1 5 CVEs

linux, linux-aws, linux-aws-5.15, linux-azure, linux-azure-5.15, linux-gcp, linux-gcp-5.15, linux-gke, linux-gke-5.15, linux-gkeop, linux-hwe-5.15, linux-hwe-5.19, linux-ibm, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-oracle, linux-oracle-5.15, linux-raspi vulnerabilities

Published May 31, 2023 · Updated Sep 21, 2026

Summary

Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in
the netfilter subsystem of the Linux kernel when processing batch requests,
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-2023-32233)

Gwangun Jung discovered that the Quick Fair Queueing scheduler
implementation in the Linux kernel contained an out-of-bounds write
vulnerability. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2023-31436)

Reima Ishii discovered that the nested KVM implementation for Intel x86
processors in the Linux kernel did not properly validate control registers
in certain situations. An attacker in a guest VM could use this to cause a
denial of service (guest crash). (CVE-2023-30456)

It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux
kernel did not properly perform data buffer size validation in some
situations. A physically proximate attacker could use this to craft a
malicious USB device that when inserted, could cause a denial of service
(system crash) or possibly expose sensitive information. (CVE-2023-1380)

Jean-Baptiste Cayrou discovered that the shiftfs file system in the Ubuntu
Linux kernel contained a race condition when handling inode locking in some
situations. A local attacker could use this to cause a denial of service
(kernel deadlock). (CVE-2023-2612)

Fixed packages 18

ReleasePackageFixed in
Ubuntu · 20.04 LTS 20.04:LTS linux-aws-5.15 5.15.0-1037.41~20.04.1
Ubuntu · 20.04 LTS 20.04:LTS linux-azure-5.15 5.15.0-1039.46~20.04.1
Ubuntu · 20.04 LTS 20.04:LTS linux-gcp-5.15 5.15.0-1035.43~20.04.1
Ubuntu · 20.04 LTS 20.04:LTS linux-gke-5.15 5.15.0-1034.39~20.04.1
Ubuntu · 20.04 LTS 20.04:LTS linux-hwe-5.15 5.15.0-73.80~20.04.1
Ubuntu · 20.04 LTS 20.04:LTS linux-lowlatency-hwe-5.15 5.15.0-73.80~20.04.1
Ubuntu · 20.04 LTS 20.04:LTS linux-oracle-5.15 5.15.0-1036.42~20.04.1
Ubuntu · 22.04 LTS 22.04:LTS linux 5.15.0-73.80
Ubuntu · 22.04 LTS 22.04:LTS linux-aws 5.15.0-1037.41
Ubuntu · 22.04 LTS 22.04:LTS linux-azure 5.15.0-1039.46
Ubuntu · 22.04 LTS 22.04:LTS linux-gcp 5.15.0-1035.43
Ubuntu · 22.04 LTS 22.04:LTS linux-gke 5.15.0-1034.39
Ubuntu · 22.04 LTS 22.04:LTS linux-gkeop 5.15.0-1021.26
Ubuntu · 22.04 LTS 22.04:LTS linux-hwe-5.19 5.19.0-43.44~22.04.1
Ubuntu · 22.04 LTS 22.04:LTS linux-ibm 5.15.0-1031.34
Ubuntu · 22.04 LTS 22.04:LTS linux-kvm 5.15.0-1034.39
Ubuntu · 22.04 LTS 22.04:LTS linux-lowlatency 5.15.0-73.80
Ubuntu · 22.04 LTS 22.04:LTS linux-oracle 5.15.0-1036.42

Vulnerabilities 5

References

  • report
    https://ubuntu.com/security/CVE-2023-1380
  • report
    https://ubuntu.com/security/CVE-2023-2612
  • report
    https://ubuntu.com/security/CVE-2023-30456
  • report
    https://ubuntu.com/security/CVE-2023-31436
  • report
    https://ubuntu.com/security/CVE-2023-32233