🛡️ USN-6044-1 — linux

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

linux, linux-aws, linux-aws-5.15, linux-azure, linux-gke, linux-gke-5.15, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-oracle, linux-oracle-5.15 vulnerabilities

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. (CVE-2023-1829)

It was discovered that a race condition existed in the io_uring subsystem

in the Linux kernel, 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-2023-1872)

Affected software

USN-6044-1 is recorded against 13 packages.

  • linux (fixed in 5.15.0-71.78)
  • linux-aws (fixed in 5.15.0-1035.39)
  • linux-aws-5.15 (fixed in 5.15.0-1035.39~20.04.1)
  • linux-azure (fixed in 5.15.0-1037.44)
  • linux-gke (fixed in 5.15.0-1032.37)
  • linux-gke-5.15 (fixed in 5.15.0-1032.37~20.04.1)
  • linux-gkeop (fixed in 5.15.0-1019.24)
  • linux-hwe-5.15 (fixed in 5.15.0-71.78~20.04.1)
  • linux-ibm (fixed in 5.15.0-1029.32)
  • linux-lowlatency (fixed in 5.15.0-71.78)
  • linux-lowlatency-hwe-5.15 (fixed in 5.15.0-71.78~20.04.1)
  • linux-oracle (fixed in 5.15.0-1034.40)
  • linux-oracle-5.15 (fixed in 5.15.0-1034.40~20.04.1)

Timeline and source

Published on 26 April 2023 and last revised on 3 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Advisory)
ubuntu.com (Report)
ubuntu.com (Report)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2023-04-26
Updated 2026-08-12
Modified 2026-06-03
Fix URL N/A

Affected Packages

Software From version Fixed in
linux — 5.15.0-71.78
linux-aws — 5.15.0-1035.39
linux-aws-5.15 — 5.15.0-1035.39~20.04.1
linux-azure — 5.15.0-1037.44
linux-gke — 5.15.0-1032.37
linux-gke-5.15 — 5.15.0-1032.37~20.04.1
linux-gkeop — 5.15.0-1019.24
linux-hwe-5.15 — 5.15.0-71.78~20.04.1
linux-ibm — 5.15.0-1029.32
linux-lowlatency — 5.15.0-71.78
linux-lowlatency-hwe-5.15 — 5.15.0-71.78~20.04.1
linux-oracle — 5.15.0-1034.40
linux-oracle-5.15 — 5.15.0-1034.40~20.04.1

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