CVE-2023-32254: Linux Kernel ksmbd Tree Connection Race Condition Remote Code Execution Vulnerability
First published: Fri Apr 28 2023(Updated: )
A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the processing of SMB2_TREE_DISCONNECT commands. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to execute code in the context of the kernel.
Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <6.4 | |
| Linux kernel | ||
| redhat/kernel | <6.4 | 6.4 |
| Linux Linux kernel | >=5.15<6.1.28 | |
| Linux Linux kernel | >=6.2<6.2.15 | |
| Linux Linux kernel | >=6.3<6.3.2 | |
| Netapp Hci Management Node | ||
| Netapp H300s | ||
| Netapp H410s | ||
| Netapp H500s | ||
| Netapp H700s | ||
| debian/linux | 5.10.218-1 5.10.221-1 6.1.94-1 6.1.99-1 6.9.10-1 6.9.12-1 | |
| ubuntu/linux | <5.15.0-102.112 | 5.15.0-102.112 |
| ubuntu/linux | <6.2.0-27.28 | 6.2.0-27.28 |
| ubuntu/linux | <6.4~ | 6.4~ |
| ubuntu/linux-allwinner | <6.4~ | 6.4~ |
| ubuntu/linux-allwinner-5.19 | <6.4~ | 6.4~ |
| ubuntu/linux-aws | <5.15.0-1057.63 | 5.15.0-1057.63 |
| ubuntu/linux-aws | <6.2.0-1009.9 | 6.2.0-1009.9 |
| ubuntu/linux-aws | <6.4~ | 6.4~ |
| ubuntu/linux-aws-5.0 | <6.4~ | 6.4~ |
| ubuntu/linux-aws-5.15 | <5.15.0-1057.63~20.04.1 | 5.15.0-1057.63~20.04.1 |
| ubuntu/linux-aws-5.15 | <6.4~ | 6.4~ |
| ubuntu/linux-aws-5.19 | <6.4~ | 6.4~ |
| ubuntu/linux-aws-5.4 | <6.4~ | 6.4~ |
| ubuntu/linux-aws-6.5 | <6.4~ | 6.4~ |
| ubuntu/linux-aws-fips | <6.4~ | 6.4~ |
| ubuntu/linux-aws-hwe | <6.4~ | 6.4~ |
| ubuntu/linux-azure | <5.15.0-1060.69 | 5.15.0-1060.69 |
| ubuntu/linux-azure | <6.2.0-1009.9 | 6.2.0-1009.9 |
| ubuntu/linux-azure | <6.4~ | 6.4~ |
| ubuntu/linux-azure-4.15 | <6.4~ | 6.4~ |
| ubuntu/linux-azure-5.15 | <5.15.0-1060.69~20.04.1 | 5.15.0-1060.69~20.04.1 |
| ubuntu/linux-azure-5.15 | <6.4~ | 6.4~ |
| ubuntu/linux-azure-5.4 | <6.4~ | 6.4~ |
| ubuntu/linux-azure-6.5 | <6.4~ | 6.4~ |
| ubuntu/linux-azure-edge | <6.4~ | 6.4~ |
| ubuntu/linux-azure-fde | <5.15.0-1060.69.1 | 5.15.0-1060.69.1 |
| ubuntu/linux-azure-fde | <6.4~ | 6.4~ |
| ubuntu/linux-azure-fde-5.15 | <5.15.0-1060.69~20.04.1.1 | 5.15.0-1060.69~20.04.1.1 |
| ubuntu/linux-azure-fde-5.15 | <6.4~ | 6.4~ |
| ubuntu/linux-azure-fde-5.19 | <6.4~ | 6.4~ |
| ubuntu/linux-azure-fips | <6.4~ | 6.4~ |
| ubuntu/linux-bluefield | <5.15.0-1040.42 | 5.15.0-1040.42 |
| ubuntu/linux-bluefield | <6.4~ | 6.4~ |
| ubuntu/linux-dell300x | <6.4~ | 6.4~ |
| ubuntu/linux-fips | <6.4~ | 6.4~ |
| ubuntu/linux-gcp | <5.15.0-1055.63 | 5.15.0-1055.63 |
| ubuntu/linux-gcp | <6.2.0-1011.11 | 6.2.0-1011.11 |
| ubuntu/linux-gcp | <6.4~ | 6.4~ |
| ubuntu/linux-gcp-4.15 | <6.4~ | 6.4~ |
| ubuntu/linux-gcp-5.15 | <5.15.0-1055.63~20.04.1 | 5.15.0-1055.63~20.04.1 |
| ubuntu/linux-gcp-5.15 | <6.4~ | 6.4~ |
| ubuntu/linux-gcp-5.19 | <6.4~ | 6.4~ |
| ubuntu/linux-gcp-5.4 | <6.4~ | 6.4~ |
| ubuntu/linux-gcp-6.5 | <6.4~ | 6.4~ |
| ubuntu/linux-gcp-fips | <6.4~ | 6.4~ |
| ubuntu/linux-gke | <5.15.0-1054.59 | 5.15.0-1054.59 |
| ubuntu/linux-gke | <6.4~ | 6.4~ |
| ubuntu/linux-gke-4.15 | <6.4~ | 6.4~ |
| ubuntu/linux-gke-5.0 | <6.4~ | 6.4~ |
| ubuntu/linux-gke-5.15 | <6.4~ | 6.4~ |
| ubuntu/linux-gke-5.4 | <6.4~ | 6.4~ |
| ubuntu/linux-gkeop | <5.15.0-1040.46 | 5.15.0-1040.46 |
| ubuntu/linux-gkeop | <6.4~ | 6.4~ |
| ubuntu/linux-gkeop-5.15 | <5.15.0-1040.46~20.04.1 | 5.15.0-1040.46~20.04.1 |
| ubuntu/linux-gkeop-5.15 | <6.4~ | 6.4~ |
| ubuntu/linux-gkeop-5.4 | <6.4~ | 6.4~ |
| ubuntu/linux-hwe | <6.4~ | 6.4~ |
| ubuntu/linux-hwe-5.15 | <5.15.0-102.112~20.04.1 | 5.15.0-102.112~20.04.1 |
| ubuntu/linux-hwe-5.15 | <6.4~ | 6.4~ |
| ubuntu/linux-hwe-5.4 | <6.4~ | 6.4~ |
| ubuntu/linux-hwe-6.5 | <6.4~ | 6.4~ |
| ubuntu/linux-hwe-edge | <6.4~ | 6.4~ |
| ubuntu/linux-ibm | <5.15.0-1050.53 | 5.15.0-1050.53 |
| ubuntu/linux-ibm | <6.2.0-1007.7 | 6.2.0-1007.7 |
| ubuntu/linux-ibm | <6.4~ | 6.4~ |
| ubuntu/linux-ibm-5.15 | <5.15.0-1050.53~20.04.1 | 5.15.0-1050.53~20.04.1 |
| ubuntu/linux-ibm-5.15 | <6.4~ | 6.4~ |
| ubuntu/linux-ibm-5.4 | <6.4~ | 6.4~ |
| ubuntu/linux-intel | <6.4~ | 6.4~ |
| ubuntu/linux-intel-5.13 | <6.4~ | 6.4~ |
| ubuntu/linux-intel-iotg | <5.15.0-1052.58 | 5.15.0-1052.58 |
| ubuntu/linux-intel-iotg | <6.4~ | 6.4~ |
| ubuntu/linux-intel-iotg-5.15 | <5.15.0-1052.58~20.04.1 | 5.15.0-1052.58~20.04.1 |
| ubuntu/linux-intel-iotg-5.15 | <6.4~ | 6.4~ |
| ubuntu/linux-iot | <6.4~ | 6.4~ |
| ubuntu/linux-kvm | <5.15.0-1054.59 | 5.15.0-1054.59 |
| ubuntu/linux-kvm | <6.2.0-1010.10 | 6.2.0-1010.10 |
| ubuntu/linux-kvm | <6.4~ | 6.4~ |
| ubuntu/linux-laptop | <6.4~ | 6.4~ |
| ubuntu/linux-lowlatency | <5.15.0-102.112 | 5.15.0-102.112 |
| ubuntu/linux-lowlatency | <6.2.0-1010.10 | 6.2.0-1010.10 |
| ubuntu/linux-lowlatency | <6.4~ | 6.4~ |
| ubuntu/linux-lowlatency-hwe-5.15 | <5.15.0-102.112~20.04.1 | 5.15.0-102.112~20.04.1 |
| ubuntu/linux-lowlatency-hwe-5.15 | <6.4~ | 6.4~ |
| ubuntu/linux-lowlatency-hwe-5.19 | <6.4~ | 6.4~ |
| ubuntu/linux-lowlatency-hwe-6.5 | <6.4~ | 6.4~ |
| ubuntu/linux-lts-xenial | <6.4~ | 6.4~ |
| ubuntu/linux-nvidia | <5.15.0-1048.48 | 5.15.0-1048.48 |
| ubuntu/linux-nvidia | <6.4~ | 6.4~ |
| ubuntu/linux-nvidia-6.5 | <6.4~ | 6.4~ |
| ubuntu/linux-nvidia-6.8 | <6.4~ | 6.4~ |
| ubuntu/linux-nvidia-lowlatency | <6.4~ | 6.4~ |
| ubuntu/linux-oem | <6.4~ | 6.4~ |
| ubuntu/linux-oem-5.10 | <6.4~ | 6.4~ |
| ubuntu/linux-oem-5.14 | <6.4~ | 6.4~ |
| ubuntu/linux-oem-5.17 | <6.4~ | 6.4~ |
| ubuntu/linux-oem-5.6 | <6.4~ | 6.4~ |
| ubuntu/linux-oem-6.0 | <6.4~ | 6.4~ |
| ubuntu/linux-oem-6.1 | <6.1.0-1014.14 | 6.1.0-1014.14 |
| ubuntu/linux-oem-6.1 | <6.4~ | 6.4~ |
| ubuntu/linux-oem-6.5 | <6.4~ | 6.4~ |
| ubuntu/linux-oem-6.8 | <6.4~ | 6.4~ |
| ubuntu/linux-oem-osp1 | <6.4~ | 6.4~ |
| ubuntu/linux-oracle | <5.15.0-1055.61 | 5.15.0-1055.61 |
| ubuntu/linux-oracle | <6.2.0-1009.9 | 6.2.0-1009.9 |
| ubuntu/linux-oracle | <6.4~ | 6.4~ |
| ubuntu/linux-oracle-5.0 | <6.4~ | 6.4~ |
| ubuntu/linux-oracle-5.13 | <6.4~ | 6.4~ |
| ubuntu/linux-oracle-5.15 | <5.15.0-1055.61~20.04.1 | 5.15.0-1055.61~20.04.1 |
| ubuntu/linux-oracle-5.15 | <6.4~ | 6.4~ |
| ubuntu/linux-oracle-5.4 | <6.4~ | 6.4~ |
| ubuntu/linux-oracle-6.5 | <6.4~ | 6.4~ |
| ubuntu/linux-raspi | <5.15.0-1050.53 | 5.15.0-1050.53 |
| ubuntu/linux-raspi | <6.2.0-1010.12 | 6.2.0-1010.12 |
| ubuntu/linux-raspi | <6.4~ | 6.4~ |
| ubuntu/linux-raspi-5.4 | <6.4~ | 6.4~ |
| ubuntu/linux-raspi2 | <6.4~ | 6.4~ |
| ubuntu/linux-riscv | <6.2.0-27.28.1 | 6.2.0-27.28.1 |
| ubuntu/linux-riscv | <6.4~ | 6.4~ |
| ubuntu/linux-riscv-5.15 | <5.15.0-1053.57~20.04.1 | 5.15.0-1053.57~20.04.1 |
| ubuntu/linux-riscv-5.15 | <6.4~ | 6.4~ |
| ubuntu/linux-riscv-6.5 | <6.4~ | 6.4~ |
| ubuntu/linux-snapdragon | <6.4~ | 6.4~ |
| ubuntu/linux-starfive | <6.2.0-1002.2 | 6.2.0-1002.2 |
| ubuntu/linux-starfive | <6.4~ | 6.4~ |
| ubuntu/linux-starfive-5.19 | <6.4~ | 6.4~ |
| ubuntu/linux-starfive-6.5 | <6.4~ | 6.4~ |
| ubuntu/linux-xilinx-zynqmp | <6.4~ | 6.4~ |
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Reference Links
- https://www.zerodayinitiative.com/advisories/ZDI-23-702/
- https://access.redhat.com/security/cve/CVE-2023-32254
- https://bugzilla.redhat.com/show_bug.cgi?id=2191658
- https://security.netapp.com/advisory/ntap-20230824-0004/
- https://launchpad.net/bugs/cve/CVE-2023-32254
- https://github.com/torvalds/linux/commit/30210947a343b6b3ca13adc9bfc88e1543e16dd5
- https://www.zerodayinitiative.com/advisories/ZDI-CAN-20592/
- https://git.kernel.org/linus/30210947a343b6b3ca13adc9bfc88e1543e16dd5
- https://security-tracker.debian.org/tracker/CVE-2023-32254
- https://git.kernel.org/linus/30210947a343b6b3ca13adc9bfc88e1543e16dd5 (6.4-rc1)
- https://ubuntu.com/security/notices/USN-6173-1
- https://ubuntu.com/security/notices/USN-6283-1
- https://ubuntu.com/security/notices/USN-6725-1
- https://www.cve.org/CVERecord?id=CVE-2023-32254
- https://ubuntu.com/security/notices/USN-6725-2
- https://nvd.nist.gov/vuln/detail/CVE-2023-32254
- https://git.kernel.org/linus/e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9
- https://ubuntu.com/security/CVE-2023-32254
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