UBUNTU-CVE-2023-0468

Advisory lineage Upstream: 1 Downstream: 9
Upstream
CVE-2023-0468
Published: 26 Jan 2023, 21:18
Last modified:22 Apr 2026, 13:59

Vulnerability Summary

Overall Risk (default)
low
19/100
CVSS Score
4.7 MEDIUM
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

26 Jan 2023, 21:18
Published
Vulnerability first disclosed
22 Apr 2026, 13:59
Last Modified
Vulnerability information updated

Description

A use-after-free flaw was found in io_uring/poll.c in io_poll_check_events in the io_uring subcomponent in the Linux Kernel due to a race condition of poll_refs. This flaw may cause a NULL pointer dereference.

CVSS Metrics

  • v3.1•MEDIUM•Score: 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Systems

  • ubuntu•linux

    < 5.15.0-67.74

  • ubuntu•linux-aws

    < 5.15.0-1031.35

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    all

  • ubuntu•linux-aws-5.13

    all

  • ubuntu•linux-aws-5.15

    < 5.15.0-1031.35~20.04.1

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-azure

    all | < 5.15.0-1034.41

  • ubuntu•linux-azure-5.11

    all

  • ubuntu•linux-azure-5.13

    all

  • ubuntu•linux-azure-5.15

    < 5.15.0-1034.41~20.04.1

  • ubuntu•linux-azure-5.19

    < 5.19.0-1023.24~22.04.1

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    < 5.15.0-1034.41.1

  • ubuntu•linux-azure-fde-5.15

    < 5.15.0-1034.41~20.04.1.2

  • ubuntu•linux-bluefield

    < 5.15.0-1014.16 | < 5.15.0-1014.16

  • ubuntu•linux-gcp

    all | < 5.15.0-1030.37

  • ubuntu•linux-gcp-5.11

    all

  • ubuntu•linux-gcp-5.13

    all

  • ubuntu•linux-gcp-5.15

    < 5.15.0-1030.37~20.04.1

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gke

    < 5.15.0-1028.33

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.15

    < 5.15.0-1028.33~20.04.1

  • ubuntu•linux-gke-5.4

    all

  • ubuntu•linux-gkeop

    < 5.15.0-1016.21

  • ubuntu•linux-gkeop-5.15

    < 5.15.0-1016.21~20.04.1

  • ubuntu•linux-gkeop-5.4

    all

  • ubuntu•linux-hwe

    all

  • ubuntu•linux-hwe-5.11

    all

  • ubuntu•linux-hwe-5.13

    all

  • ubuntu•linux-hwe-5.15

    < 5.15.0-67.74~20.04.1

  • ubuntu•linux-hwe-5.19

    < 5.19.0-40.41~22.04.1

  • ubuntu•linux-hwe-5.8

    all

  • ubuntu•linux-hwe-edge

    all

  • ubuntu•linux-ibm

    < 5.15.0-1026.29

  • ubuntu•linux-intel-5.13

    all

  • ubuntu•linux-intel-iot-realtime

    < 5.15.0-1022.27 | < 5.15.0-1022.27

  • ubuntu•linux-intel-iotg

    < 5.15.0-1026.31

  • ubuntu•linux-intel-iotg-5.15

    < 5.15.0-1026.31~20.04.1

  • ubuntu•linux-kvm

    < 5.15.0-1029.34

  • ubuntu•linux-lowlatency

    < 5.15.0-67.74

  • ubuntu•linux-lowlatency-hwe-5.15

    < 5.15.0-67.74~20.04.1

  • ubuntu•linux-lowlatency-hwe-5.19

    < 5.19.0-1022.23~22.04.1

  • ubuntu•linux-nvidia

    < 5.15.0-1023.23

  • ubuntu•linux-oem

    all

Showing first 50 affected entries in server-rendered view.

References (12)