Vulnerability · Published Jul 24, 2023 · Assigned by redhat
CVE-2023-32247Session setup memory exhaustion denial-of-service vulnerability
High 7.5
In plain English
A high-severity memory leak 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 3.9% (higher than 90% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)3.9%top 9.8% 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 handling of SMB2_SESSION_SETUP commands. The issue results from the lack of control of resource consumption. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 6.1.37-1 | DEBIAN-CVE-2023-32247 |
| Debian:13 | linux | 6.3.7-1 | DEBIAN-CVE-2023-32247 |
| Debian:14 | linux | 6.3.7-1 | DEBIAN-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux | 5.15.0-101.111 | USN-6704-1 |
| Ubuntu:22.04:LTS | linux | 5.15.0-101.111 | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1056.61 | USN-6705-1 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1056.61 | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | no fix listed | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | 6.2.0-1011.11~22.04.1 | USN-6338-1 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | 6.2.0-1011.11~22.04.1 | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1059.67 | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1059.67 | USN-6704-1 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1059.67.1 | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1059.67.1 | USN-6704-1 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1054.62 | USN-6704-1 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1054.62 | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | no fix listed | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | 6.2.0-1013.13~22.04.1 | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | 6.2.0-1013.13~22.04.1 | USN-6338-2 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1053.58 | USN-6704-1 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1053.58 | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1039.45 | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1039.45 | USN-6704-1 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | no fix listed | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | 6.2.0-32.32~22.04.1 | USN-6338-1 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | 6.2.0-32.32~22.04.1 | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1049.52 | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1049.52 | USN-6704-1 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1051.57 | USN-6704-4 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1051.57 | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1053.58 | USN-6704-1 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1053.58 | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-101.111 | USN-6704-1 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-101.111 | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | no fix listed | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | 6.2.0-1012.12~22.04.1 | USN-6338-1 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | 6.2.0-1012.12~22.04.1 | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1047.47 | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1047.47 | USN-6704-1 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | 6.2.0-1010.10 | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra | 5.15.0-1025.25 | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra-igx | 5.15.0-1012.12 | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | 6.1.0-1014.14 | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1054.60 | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1054.60 | USN-6704-3 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1049.52 | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1049.52 | USN-6704-2 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-riscv-5.19 | no fix listed | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 | no fix listed | UBUNTU-CVE-2023-32247 |
| Ubuntu:22.04:LTS | linux-xilinx-zynqmp | 5.15.0-1030.34 | UBUNTU-CVE-2023-32247 |
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-401 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- https://access.redhat.com/security/cve/CVE-2023-32247 vdb-entry, x_refsource_REDHAT
- RHBZ#2219803 issue-tracking, x_refsource_REDHAT
- https://security.netapp.com/advisory/ntap-20230915-0011/
- https://www.zerodayinitiative.com/advisories/ZDI-CAN-20478/