critical
CVE-2023-38429
An issue was discovered in the Linux kernel before 6.3.4. fs/ksmbd/con ...
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.
Severity by source
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Trivy's own label is CRITICAL. Rated critical by NVD, CBL-Mariner, Photon OS, Ubuntu.
Description
An issue was discovered in the Linux kernel before 6.3.4. fs/ksmbd/connection.c in ksmbd has an off-by-one error in memory allocation (because of ksmbd_smb2_check_message) that may lead to out-of-bounds access.
Affected packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| CBL-Mariner 1.0 | kernel | 0:5.10.188.1-1.cm1 |
| CBL-Mariner 2.0 | kernel | 0:5.15.122.1-2.cm2 |
| Photon OS 5.0 | bpftool, linux, linux-devel and 5 more | 6.1.32-1.ph5 |
| ubuntu 20.04 | linux-aws-5.15, linux-azure-5.15, linux-gcp-5.15 and 8 more | 5.15.0-1044.49~20.04.1 and 9 more |
| ubuntu 20.04-ESM | linux-aws-5.15, linux-azure-5.15, linux-gcp-5.15 and 8 more | 5.15.0-1044.49~20.04.1 and 9 more |
| ubuntu 22.04 | linux, linux-aws, linux-aws-6.2 and 21 more | 5.15.0-83.92 and 20 more |
| ubuntu 23.04 | linux, linux-aws, linux-azure and 8 more | 6.2.0-32.32 and 7 more |
| debian 12 | linux | 6.1.37-1 |
| debian 13 | linux | 6.3.7-1 |
| debian 14 | linux | 6.3.7-1 |
| echo | linux | 6.1.37-1 |
| root.io debian 12 | rootio-linux | 6.1.37-1 |
Show all 74 entries from 14 sources
| Source | Package | Fixed in |
|---|---|---|
| CBL-Mariner 1.0 | kernel | 0:5.10.188.1-1.cm1 |
| CBL-Mariner 2.0 | kernel | 0:5.15.122.1-2.cm2 |
| Photon OS 5.0 | bpftool | 6.1.32-1.ph5 |
| Photon OS 5.0 | linux | 6.1.32-1.ph5 |
| Photon OS 5.0 | linux-devel | 6.1.32-1.ph5 |
| Photon OS 5.0 | linux-docs | 6.1.32-1.ph5 |
| Photon OS 5.0 | linux-drivers-gpu | 6.1.32-1.ph5 |
| Photon OS 5.0 | linux-drivers-sound | 6.1.32-1.ph5 |
| Photon OS 5.0 | linux-python3-perf | 6.1.32-1.ph5 |
| Photon OS 5.0 | linux-tools | 6.1.32-1.ph5 |
| ubuntu 20.04 | linux-aws-5.15 | 5.15.0-1044.49~20.04.1 |
| ubuntu 20.04 | linux-azure-5.15 | 5.15.0-1046.53~20.04.1 |
| ubuntu 20.04 | linux-gcp-5.15 | 5.15.0-1041.49~20.04.1 |
| ubuntu 20.04 | linux-gkeop-5.15 | 5.15.0-1027.32~20.04.1 |
| ubuntu 20.04 | linux-hwe-5.15 | 5.15.0-83.92~20.04.1 |
| ubuntu 20.04 | linux-ibm-5.15 | 5.15.0-1037.40~20.04.1 |
| ubuntu 20.04 | linux-intel-iotg-5.15 | 5.15.0-1040.46~20.04.1 |
| ubuntu 20.04 | linux-lowlatency-hwe-5.15 | 5.15.0-83.92~20.04.1 |
| ubuntu 20.04 | linux-nvidia-tegra-5.15 | 5.15.0-1017.17~20.04.1 |
| ubuntu 20.04 | linux-oracle-5.15 | 5.15.0-1042.48~20.04.1 |
| ubuntu 20.04 | linux-riscv-5.15 | 5.15.0-1040.44~20.04.3 |
| ubuntu 20.04-ESM | linux-aws-5.15 | 5.15.0-1044.49~20.04.1 |
| ubuntu 20.04-ESM | linux-azure-5.15 | 5.15.0-1046.53~20.04.1 |
| ubuntu 20.04-ESM | linux-gcp-5.15 | 5.15.0-1041.49~20.04.1 |
| ubuntu 20.04-ESM | linux-gkeop-5.15 | 5.15.0-1027.32~20.04.1 |
| ubuntu 20.04-ESM | linux-hwe-5.15 | 5.15.0-83.92~20.04.1 |
| ubuntu 20.04-ESM | linux-ibm-5.15 | 5.15.0-1037.40~20.04.1 |
| ubuntu 20.04-ESM | linux-intel-iotg-5.15 | 5.15.0-1040.46~20.04.1 |
| ubuntu 20.04-ESM | linux-lowlatency-hwe-5.15 | 5.15.0-83.92~20.04.1 |
| ubuntu 20.04-ESM | linux-nvidia-tegra-5.15 | 5.15.0-1017.17~20.04.1 |
| ubuntu 20.04-ESM | linux-oracle-5.15 | 5.15.0-1042.48~20.04.1 |
| ubuntu 20.04-ESM | linux-riscv-5.15 | 5.15.0-1040.44~20.04.3 |
| ubuntu 22.04 | linux | 5.15.0-83.92 |
| ubuntu 22.04 | linux-aws | 5.15.0-1044.49 |
| ubuntu 22.04 | linux-aws-6.2 | 6.2.0-1011.11~22.04.1 |
| ubuntu 22.04 | linux-azure | 5.15.0-1046.53 |
| ubuntu 22.04 | linux-azure-fde | 5.15.0-1046.53.1 |
| ubuntu 22.04 | linux-gcp | 5.15.0-1041.49 |
| ubuntu 22.04 | linux-gcp-6.2 | 6.2.0-1013.13~22.04.1 |
| ubuntu 22.04 | linux-gke | 5.15.0-1041.46 |
| ubuntu 22.04 | linux-gkeop | 5.15.0-1027.32 |
| ubuntu 22.04 | linux-hwe-6.2 | 6.2.0-32.32~22.04.1 |
| ubuntu 22.04 | linux-ibm | 5.15.0-1037.40 |
| ubuntu 22.04 | linux-intel-iot-realtime | 5.15.0-1038.40 |
| ubuntu 22.04 | linux-intel-iotg | 5.15.0-1039.45 |
| ubuntu 22.04 | linux-kvm | 5.15.0-1041.46 |
| ubuntu 22.04 | linux-lowlatency | 5.15.0-83.92 |
| ubuntu 22.04 | linux-lowlatency-hwe-6.2 | 6.2.0-1012.12~22.04.1 |
| ubuntu 22.04 | linux-nvidia | 5.15.0-1032.32 |
| ubuntu 22.04 | linux-nvidia-6.2 | 6.2.0-1010.10 |
| ubuntu 22.04 | linux-nvidia-tegra | 5.15.0-1017.17 |
| ubuntu 22.04 | linux-nvidia-tegra-igx | 5.15.0-1004.4 |
| ubuntu 22.04 | linux-oem-6.1 | 6.1.0-1016.16 |
| ubuntu 22.04 | linux-oracle | 5.15.0-1042.48 |
| ubuntu 22.04 | linux-raspi | 5.15.0-1037.40 |
| ubuntu 22.04 | linux-xilinx-zynqmp | 5.15.0-1025.29 |
| ubuntu 23.04 | linux | 6.2.0-32.32 |
| ubuntu 23.04 | linux-aws | 6.2.0-1011.11 |
| ubuntu 23.04 | linux-azure | 6.2.0-1011.11 |
| ubuntu 23.04 | linux-gcp | 6.2.0-1013.13 |
| ubuntu 23.04 | linux-ibm | 6.2.0-1009.9 |
| ubuntu 23.04 | linux-kvm | 6.2.0-1012.12 |
| ubuntu 23.04 | linux-lowlatency | 6.2.0-1012.12 |
| ubuntu 23.04 | linux-oracle | 6.2.0-1011.11 |
| ubuntu 23.04 | linux-raspi | 6.2.0-1012.14 |
| ubuntu 23.04 | linux-riscv | 6.2.0-32.32.2 |
| ubuntu 23.04 | linux-starfive | 6.2.0-1004.5 |
| debian 12 | linux | 6.1.37-1 |
| debian 13 | linux | 6.3.7-1 |
| debian 14 | linux | 6.3.7-1 |
| echo | linux | 6.1.37-1 |
| root.io debian 12 | rootio-linux | 6.1.37-1 |
| root.io debian 13 | rootio-linux | 6.3.7-1 |
| root.io ubuntu 22.04 | rootio-linux | 5.15.0-83.92 |
References
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.4
- https://git.kernel.org/linus/443d61d1fa9faa60ef925513d83742902390100f%20%286.4-rc3%29
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/ksmbd?id=443d61d1fa9faa60ef925513d83742902390100f
- https://nvd.nist.gov/vuln/detail/CVE-2023-38429
- https://security.netapp.com/advisory/ntap-20250103-0009/
- https://ubuntu.com/security/notices/USN-6338-1
- https://ubuntu.com/security/notices/USN-6338-2
- https://ubuntu.com/security/notices/USN-6339-1
All 15 references
- https://ubuntu.com/security/notices/USN-6339-2
- https://ubuntu.com/security/notices/USN-6339-3
- https://ubuntu.com/security/notices/USN-6339-4
- https://ubuntu.com/security/notices/USN-6344-1
- https://ubuntu.com/security/notices/USN-6350-1
- https://ubuntu.com/security/notices/USN-6351-1
- https://www.cve.org/CVERecord?id=CVE-2023-38429