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USN-6465-1 Not scored

linux, linux-aws, linux-aws-5.15, linux-azure, linux-azure-5.15, linux-azure-fde, linux-azure-fde-5.15, linux-gcp, linux-gcp-5.15, linux-gkeop, linux-gkeop-5.15, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle, linux-oracle-5.15 vulnerabilities

Yu Hao and Weiteng Chen discovered that the Bluetooth HCI UART driver in the Linux kernel contained a race condition, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-31083) Lin Ma discovered that the Netlink Transformation (XFRM) subsystem in the Linux kernel contained a null pointer dereference vulnerability in some situations. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2023-3772)

Exploit probability Not scored
Published October 31, 2023
Required by Not available
Last source change June 3, 2026

02 / AFFECTED SOFTWARE

Affected packages

Ubuntu:20.04:LTS linux-aws-5.15

27 explicit affected versions

Ubuntu:20.04:LTS linux-azure-5.15

29 explicit affected versions

Ubuntu:20.04:LTS linux-azure-fde-5.15

21 explicit affected versions

Ubuntu:20.04:LTS linux-gcp-5.15

27 explicit affected versions

Ubuntu:20.04:LTS linux-gkeop-5.15

23 explicit affected versions

Ubuntu:20.04:LTS linux-hwe-5.15

27 explicit affected versions

Ubuntu:20.04:LTS linux-ibm-5.15

8 explicit affected versions

Ubuntu:20.04:LTS linux-lowlatency-hwe-5.15

26 explicit affected versions

Ubuntu:20.04:LTS linux-oracle-5.15

26 explicit affected versions

Ubuntu:22.04:LTS linux

40 explicit affected versions

Ubuntu:22.04:LTS linux-aws

36 explicit affected versions

Ubuntu:22.04:LTS linux-azure

37 explicit affected versions

Ubuntu:22.04:LTS linux-azure-fde

20 explicit affected versions

Ubuntu:22.04:LTS linux-gcp

34 explicit affected versions

Ubuntu:22.04:LTS linux-gkeop

26 explicit affected versions

Ubuntu:22.04:LTS linux-ibm

31 explicit affected versions

Ubuntu:22.04:LTS linux-kvm

37 explicit affected versions

Ubuntu:22.04:LTS linux-lowlatency

37 explicit affected versions

Ubuntu:22.04:LTS linux-nvidia

18 explicit affected versions

Ubuntu:22.04:LTS linux-oracle

34 explicit affected versions

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities USN-6465-1

Yu Hao and Weiteng Chen discovered that the Bluetooth HCI UART driver in the Linux kernel contained a race condition, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-31083) Lin Ma discovered that the Netlink Transformation (XFRM) subsystem in the Linux kernel contained a null pointer dereference vulnerability in some situations. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2023-3772)

View original source

05 / REFERENCES

Further evidence