CVE-2023-52572: cifs: Fix UAF in cifs_demultiplex_thread()

Published Mar 2, 2024
·
Updated

cifs: Fix UAF in cifsdemultiplexthread()

Affected Software

181 affected componentsFixes available
Linux Linux kernel>=2.6.16<6.1.56
Linux Linux kernel>=6.2<6.5.6
Linux Linux kernel=6.6-rc1
Linux Linux kernel=6.6-rc2
debian/linux<=5.10.223-1, <=5.10.234-1
6.1.129-16.1.135-16.12.25-16.12.27-1
Debian Debian Linux=11.0
Linux Linux kernel>=2.6.16<5.4.297
Linux Linux kernel>=5.5<5.10.237
Linux Linux kernel>=5.11<5.15.181
Linux Linux kernel>=5.16<6.1.56
Microsoft cbl2 kernel 5.15.182.1-1
Microsoft cbl2 kernel 5.15.182.1-1<5.15.182.1-1
5.15.182.1-1
ubuntu/linux*
ubuntu/linux-aws*
ubuntu/linux-azure*
ubuntu/linux-lts-xenial*
ubuntu/linux*
ubuntu/linux-aws*
ubuntu/linux-aws-hwe*
ubuntu/linux-azure*
ubuntu/linux-gcp*
ubuntu/linux-hwe*
ubuntu/linux-hwe-edge*
ubuntu/linux-kvm*
ubuntu/linux-oracle*
ubuntu/linux-fips*
ubuntu/linux-fips*
ubuntu/linux*
ubuntu/linux-aws*
ubuntu/linux-aws-5.0*
ubuntu/linux-aws-5.3*
ubuntu/linux-aws-5.4*
ubuntu/linux-azure*
ubuntu/linux-azure-4.15*
ubuntu/linux-azure-5.3*
ubuntu/linux-azure-5.4*
ubuntu/linux-azure-edge*
ubuntu/linux-gcp*
ubuntu/linux-gcp-4.15*
ubuntu/linux-gcp-5.3*
ubuntu/linux-gcp-5.4*
ubuntu/linux-gke-4.15*
ubuntu/linux-gke-5.4*
ubuntu/linux-gkeop-5.4*
ubuntu/linux-hwe*
ubuntu/linux-hwe-5.4*
ubuntu/linux-hwe-edge*
ubuntu/linux-ibm-5.4*
ubuntu/linux-kvm*
ubuntu/linux-oem*
ubuntu/linux-oracle*
ubuntu/linux-oracle-5.0*
ubuntu/linux-oracle-5.3*
ubuntu/linux-oracle-5.4*
ubuntu/linux-raspi-5.4*
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux-azure-5.15<5.15.0-1078.87~20.04.1
5.15.0-1078.87~20.04.1
ubuntu/linux*
ubuntu/linux-aws*
ubuntu/linux-aws-5.11*
ubuntu/linux-aws-5.13*
ubuntu/linux-aws-5.15<5.15.0-1088.95~20.04.1
5.15.0-1088.95~20.04.1
ubuntu/linux-aws-5.8*
ubuntu/linux-azure*
ubuntu/linux-azure-5.11*
ubuntu/linux-azure-5.13*
ubuntu/linux-azure-5.8*
ubuntu/linux-azure-fde*
ubuntu/linux-bluefield*
ubuntu/linux-gcp*
ubuntu/linux-gcp-5.11*
ubuntu/linux-gcp-5.13*
ubuntu/linux-gcp-5.15<5.15.0-1087.96~20.04.2
5.15.0-1087.96~20.04.2
ubuntu/linux-gcp-5.8*
ubuntu/linux-gke*
ubuntu/linux-gke-5.15*
ubuntu/linux-gkeop*
ubuntu/linux-gkeop-5.15*
ubuntu/linux-hwe-5.11*
ubuntu/linux-hwe-5.13*
ubuntu/linux-hwe-5.15<5.15.0-144.157~20.04.1
5.15.0-144.157~20.04.1
ubuntu/linux-hwe-5.8*
ubuntu/linux-ibm*
ubuntu/linux-ibm-5.15<5.15.0-1080.83~20.04.1
5.15.0-1080.83~20.04.1
ubuntu/linux-intel-5.13*
ubuntu/linux-intel-iotg-5.15<5.15.0-1083.89~20.04.1
5.15.0-1083.89~20.04.1
ubuntu/linux-iot*
ubuntu/linux-kvm*
ubuntu/linux-lowlatency-hwe-5.15<5.15.0-144.157~20.04.1
5.15.0-144.157~20.04.1
ubuntu/linux-nvidia-tegra-5.15<5.15.0-1041.41~20.04.1
5.15.0-1041.41~20.04.1
ubuntu/linux-oem-5.10*
ubuntu/linux-oem-5.13*
ubuntu/linux-oem-5.6*
ubuntu/linux-oracle*
ubuntu/linux-oracle-5.11*
ubuntu/linux-oracle-5.13*
ubuntu/linux-oracle-5.15<5.15.0-1085.91~20.04.3
5.15.0-1085.91~20.04.3
ubuntu/linux-oracle-5.8*
ubuntu/linux-raspi*
ubuntu/linux-raspi2*
ubuntu/linux-riscv*
ubuntu/linux-riscv-5.11*
ubuntu/linux-riscv-5.15<5.15.0-1083.87~20.04.1
5.15.0-1083.87~20.04.1
ubuntu/linux-riscv-5.8*
ubuntu/linux-xilinx-zynqmp*
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.15.0-144.157
5.15.0-144.157
ubuntu/linux-allwinner-5.19*
ubuntu/linux-aws<5.15.0-1088.95
5.15.0-1088.95
ubuntu/linux-aws-5.19*
ubuntu/linux-aws-6.2*
ubuntu/linux-aws-6.5*
ubuntu/linux-azure<5.15.0-1075.84
5.15.0-1075.84
ubuntu/linux-azure-5.19*
ubuntu/linux-azure-6.2*
ubuntu/linux-azure-6.5*
ubuntu/linux-azure-fde<5.15.0-1076.85.1
5.15.0-1076.85.1
ubuntu/linux-azure-fde-5.19*
ubuntu/linux-azure-fde-6.2*
ubuntu/linux-gcp<5.15.0-1087.96
5.15.0-1087.96
ubuntu/linux-gcp-5.19*
ubuntu/linux-gcp-6.2*
ubuntu/linux-gcp-6.5*
ubuntu/linux-gke<5.15.0-1085.91
5.15.0-1085.91
ubuntu/linux-gkeop<5.15.0-1070.78
5.15.0-1070.78
ubuntu/linux-hwe-5.19*
ubuntu/linux-hwe-6.2*
ubuntu/linux-hwe-6.5*
ubuntu/linux-ibm<5.15.0-1080.83
5.15.0-1080.83
ubuntu/linux-intel-iot-realtime*
ubuntu/linux-intel-iotg<5.15.0-1083.89
5.15.0-1083.89
ubuntu/linux-kvm<5.15.0-1084.89
5.15.0-1084.89
ubuntu/linux-lowlatency<5.15.0-144.157
5.15.0-144.157
ubuntu/linux-lowlatency-hwe-5.19*
ubuntu/linux-lowlatency-hwe-6.2*
ubuntu/linux-lowlatency-hwe-6.5*
ubuntu/linux-nvidia<5.15.0-1082.83
5.15.0-1082.83
ubuntu/linux-nvidia-6.2*
ubuntu/linux-nvidia-6.5<6.5.0-1014.14
6.5.0-1014.14
ubuntu/linux-nvidia-tegra<5.15.0-1041.41
5.15.0-1041.41
ubuntu/linux-nvidia-tegra-igx<5.15.0-1030.30
5.15.0-1030.30
ubuntu/linux-oem-5.17*
ubuntu/linux-oem-6.0*
ubuntu/linux-oem-6.1*
ubuntu/linux-oem-6.5*
ubuntu/linux-oracle<5.15.0-1085.91
5.15.0-1085.91
ubuntu/linux-oracle-6.5*
ubuntu/linux-raspi<5.15.0-1083.86
5.15.0-1083.86
ubuntu/linux-realtime*
ubuntu/linux-riscv*
ubuntu/linux-riscv-5.19*
ubuntu/linux-starfive-5.19*
ubuntu/linux-starfive-6.2*
ubuntu/linux-xilinx-zynqmp<5.15.0-1052.56
5.15.0-1052.56
ubuntu/linux-bluefield<5.15.0-1072.74
5.15.0-1072.74
ubuntu/linux-intel-iot-realtime<5.15.0-1081.83
5.15.0-1081.83
ubuntu/linux-realtime<5.15.0-1088.97
5.15.0-1088.97
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux-aws-fips<5.15.0-1088.95+fips1
5.15.0-1088.95+fips1
ubuntu/linux-azure-fips<5.15.0-1075.84+fips1
5.15.0-1075.84+fips1
ubuntu/linux-fips<5.15.0-144.157+fips1
5.15.0-144.157+fips1
ubuntu/linux-gcp-fips<5.15.0-1087.96+fips1
5.15.0-1087.96+fips1
ubuntu/linux-raspi-realtime*
ubuntu/linux-vmware*

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/linux to a version that resolves this vulnerability.

    Fixed in 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.25-1Fixed in 6.12.27-1
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 5.15.182.1-1
  3. Upgrade

    Upgrade ubuntu/linux-azure-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1078.87~20.04.1
  4. Upgrade

    Upgrade ubuntu/linux-aws-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1088.95~20.04.1
  5. Upgrade

    Upgrade ubuntu/linux-gcp-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1087.96~20.04.2
  6. Upgrade

    Upgrade ubuntu/linux-hwe-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-144.157~20.04.1
  7. Upgrade

    Upgrade ubuntu/linux-ibm-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1080.83~20.04.1
  8. Upgrade

    Upgrade ubuntu/linux-intel-iotg-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1083.89~20.04.1
  9. Upgrade

    Upgrade ubuntu/linux-lowlatency-hwe-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-144.157~20.04.1
  10. Upgrade

    Upgrade ubuntu/linux-nvidia-tegra-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1041.41~20.04.1
  11. Upgrade

    Upgrade ubuntu/linux-oracle-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1085.91~20.04.3
  12. Upgrade

    Upgrade ubuntu/linux-riscv-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1083.87~20.04.1
  13. Upgrade

    Upgrade ubuntu/linux to a version that resolves this vulnerability.

    Fixed in 5.15.0-144.157
  14. Upgrade

    Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.

    Fixed in 5.15.0-1088.95
  15. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 5.15.0-1075.84
  16. Upgrade

    Upgrade ubuntu/linux-azure-fde to a version that resolves this vulnerability.

    Fixed in 5.15.0-1076.85.1
  17. Upgrade

    Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.

    Fixed in 5.15.0-1087.96
  18. Upgrade

    Upgrade ubuntu/linux-gke to a version that resolves this vulnerability.

    Fixed in 5.15.0-1085.91
  19. Upgrade

    Upgrade ubuntu/linux-gkeop to a version that resolves this vulnerability.

    Fixed in 5.15.0-1070.78
  20. Upgrade

    Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.

    Fixed in 5.15.0-1080.83
  21. Upgrade

    Upgrade ubuntu/linux-intel-iotg to a version that resolves this vulnerability.

    Fixed in 5.15.0-1083.89
  22. Upgrade

    Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.

    Fixed in 5.15.0-1084.89
  23. Upgrade

    Upgrade ubuntu/linux-lowlatency to a version that resolves this vulnerability.

    Fixed in 5.15.0-144.157
  24. Upgrade

    Upgrade ubuntu/linux-nvidia to a version that resolves this vulnerability.

    Fixed in 5.15.0-1082.83
  25. Upgrade

    Upgrade ubuntu/linux-nvidia-6.5 to a version that resolves this vulnerability.

    Fixed in 6.5.0-1014.14
  26. Upgrade

    Upgrade ubuntu/linux-nvidia-tegra to a version that resolves this vulnerability.

    Fixed in 5.15.0-1041.41
  27. Upgrade

    Upgrade ubuntu/linux-nvidia-tegra-igx to a version that resolves this vulnerability.

    Fixed in 5.15.0-1030.30
  28. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 5.15.0-1085.91
  29. Upgrade

    Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.

    Fixed in 5.15.0-1083.86
  30. Upgrade

    Upgrade ubuntu/linux-xilinx-zynqmp to a version that resolves this vulnerability.

    Fixed in 5.15.0-1052.56
  31. Upgrade

    Upgrade ubuntu/linux-bluefield to a version that resolves this vulnerability.

    Fixed in 5.15.0-1072.74
  32. Upgrade

    Upgrade ubuntu/linux-intel-iot-realtime to a version that resolves this vulnerability.

    Fixed in 5.15.0-1081.83
  33. Upgrade

    Upgrade ubuntu/linux-realtime to a version that resolves this vulnerability.

    Fixed in 5.15.0-1088.97
  34. Upgrade

    Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.

    Fixed in 5.15.0-1088.95+fips1
  35. Upgrade

    Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.

    Fixed in 5.15.0-1075.84+fips1
  36. Upgrade

    Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.

    Fixed in 5.15.0-144.157+fips1
  37. Upgrade

    Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.

    Fixed in 5.15.0-1087.96+fips1
  38. Upgrade

    Upgrade Linux kernel (cifs) to a version that resolves this vulnerability.

    Patch cifs: Fix UAF in cifs_demultiplex_thread()
  39. Configuration

    Add an extra state to mark the mid state to READY before wakeup the waiter, so the response can be obtained safely (per the description: then it can get the resp safely).

    SMB2 negotiate MID handling (cifs_demultiplex_thread) mid->mid_state = READY before wakeup the waiter
  40. Compensating control

    KILL the process before the response is fully handled (mid state already RECEIVED, get 0) to avoid triggering the UAF in the described reproduction window [3]-[6].

Event History

Mar 2, 2024
CVE Published
via MITRE·09:59 PM
Data Sourced
via MITRE·09:59 PM
DescriptionSeverity
Data Sourced
via OSV·10:15 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·10:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Sep 4, 2025
Data Sourced
via Microsoft·05:52 AM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·05:52 AM
Affected Software

Frequently Asked Questions

1

What is the severity of CVE-2023-52572?

CVE-2023-52572 is a high-severity use-after-free vulnerability in the Linux kernel's CIFS implementation.

2

How do I fix CVE-2023-52572?

To fix CVE-2023-52572, upgrade to Linux kernel versions 6.1.123-1, 6.1.128-1, or any version above 6.12.12-1.

3

Which versions of the Linux kernel are affected by CVE-2023-52572?

CVE-2023-52572 affects Linux kernel versions from 2.6.16 up to 6.1.56, as well as between 6.2 and 6.5.6.

4

What are the potential impacts of CVE-2023-52572?

CVE-2023-52572 can potentially allow attackers to exploit a use-after-free condition, leading to memory corruption and possible code execution.

5

Is there a workaround for CVE-2023-52572?

There are no known workarounds for CVE-2023-52572; applying the appropriate patches is necessary to mitigate the vulnerability.

Company

Resources

Contact

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