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USN-6047-1 Not scored

linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-4.15, linux-azure-5.4, linux-gcp, linux-gcp-4.15, linux-gcp-5.4, linux-gke, linux-gkeop, linux-hwe, linux-hwe-5.4, linux-ibm, linux-kvm, linux-oracle, linux-oracle-5.4 vulnerability

It was discovered that the Traffic-Control Index (TCINDEX) implementation in the Linux kernel did not properly perform filter deactivation in some situations. A local attacker could possibly use this to gain elevated privileges. Please note that with the fix for this CVE, kernel support for the TCINDEX classifier has been removed.

Exploit probability Not scored
Published April 27, 2023
Required by Not available
Last source change June 29, 2026

02 / AFFECTED SOFTWARE

Affected packages

Ubuntu:18.04:LTS linux

112 explicit affected versions

Ubuntu:18.04:LTS linux-aws-5.4

55 explicit affected versions

Ubuntu:18.04:LTS linux-azure-4.15

52 explicit affected versions

Ubuntu:18.04:LTS linux-azure-5.4

54 explicit affected versions

Ubuntu:18.04:LTS linux-gcp-4.15

53 explicit affected versions

Ubuntu:18.04:LTS linux-gcp-5.4

56 explicit affected versions

Ubuntu:18.04:LTS linux-hwe-5.4

64 explicit affected versions

Ubuntu:18.04:LTS linux-kvm

92 explicit affected versions

Ubuntu:18.04:LTS linux-oracle

78 explicit affected versions

Ubuntu:18.04:LTS linux-oracle-5.4

55 explicit affected versions

Ubuntu:20.04:LTS linux

75 explicit affected versions

Ubuntu:20.04:LTS linux-aws

67 explicit affected versions

Ubuntu:20.04:LTS linux-azure

64 explicit affected versions

Ubuntu:20.04:LTS linux-gcp

67 explicit affected versions

Ubuntu:20.04:LTS linux-gke

43 explicit affected versions

Ubuntu:20.04:LTS linux-gkeop

44 explicit affected versions

Ubuntu:20.04:LTS linux-ibm

33 explicit affected versions

Ubuntu:20.04:LTS linux-kvm

62 explicit affected versions

Ubuntu:20.04:LTS linux-oracle

66 explicit affected versions

Ubuntu:Pro:14.04:LTS linux-azure

82 explicit affected versions

Ubuntu:Pro:16.04:LTS linux-azure

103 explicit affected versions

Ubuntu:Pro:16.04:LTS linux-gcp

99 explicit affected versions

Ubuntu:Pro:16.04:LTS linux-hwe

126 explicit affected versions

Ubuntu:Pro:16.04:LTS linux-oracle

75 explicit affected versions

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities USN-6047-1

It was discovered that the Traffic-Control Index (TCINDEX) implementation in the Linux kernel did not properly perform filter deactivation in some situations. A local attacker could possibly use this to gain elevated privileges. Please note that with the fix for this CVE, kernel support for the TCINDEX classifier has been removed.

View original source

05 / REFERENCES

Further evidence