Vulnerability · Published Jul 10, 2023 · Assigned by redhat
CVE-2023-32254Tree connection race condition remote code execution vulnerability
Critical 9.8
In plain English
A critical-severity race condition in Fedora from Fedora. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.9% (higher than 87% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)2.9%top 12.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 6.1.37-1 | DEBIAN-CVE-2023-32254 |
| Debian:12 | linux | 6.1.37-1 | DSA-5448-1 |
| Debian:13 | linux | 6.3.7-1 | DEBIAN-CVE-2023-32254 |
| Debian:14 | linux | 6.3.7-1 | DEBIAN-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux | 5.15.0-102.112 | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux | 5.15.0-102.112 | USN-6725-1 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1057.63 | USN-6725-2 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1057.63 | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | no fix listed | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1060.69 | USN-6725-1 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1060.69 | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1060.69.1 | USN-6725-1 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1060.69.1 | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1055.63 | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1055.63 | USN-6725-1 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | no fix listed | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1054.59 | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1054.59 | USN-6725-1 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1040.46 | USN-6725-1 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1040.46 | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | no fix listed | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1050.53 | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1050.53 | USN-6725-1 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1052.58 | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1052.58 | USN-6725-1 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1054.59 | USN-6725-1 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1054.59 | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-102.112 | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-102.112 | USN-6725-1 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | no fix listed | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1048.48 | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1048.48 | USN-6725-1 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | 6.2.0-1010.10 | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra | 5.15.0-1025.25 | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra-igx | 5.15.0-1012.12 | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | 6.1.0-1014.14 | USN-6173-1 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | 6.1.0-1014.14 | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1055.61 | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1055.61 | USN-6725-1 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1050.53 | USN-6725-1 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1050.53 | UBUNTU-CVE-2023-32254 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-riscv-5.19 | no fix listed | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 | no fix listed | UBUNTU-CVE-2023-32254 |
| Ubuntu:22.04:LTS | linux-xilinx-zynqmp | 5.15.0-1030.34 | UBUNTU-CVE-2023-32254 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | kernel | see references |
| Red Hat | Red Hat Enterprise Linux 6 | see references |
| Red Hat | Red Hat Enterprise Linux 7 | see references |
| Red Hat | Red Hat Enterprise Linux 7 | see references |
| Red Hat | Red Hat Enterprise Linux 8 | see references |
| Red Hat | Red Hat Enterprise Linux 8 | see references |
| Red Hat | Red Hat Enterprise Linux 9 | see references |
| Red Hat | Red Hat Enterprise Linux 9 | see references |
| Fedora | Fedora | see references |
Weakness: CWE-362 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://access.redhat.com/security/cve/CVE-2023-32254 vdb-entry, x_refsource_REDHAT
- RHBZ#2191658 issue-tracking, x_refsource_REDHAT
- https://www.zerodayinitiative.com/advisories/ZDI-23-702/
- https://security.netapp.com/advisory/ntap-20230824-0004/