CVE-2022-47940
First published: Fri Dec 23 2022(Updated: )
An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.18 before 5.18.18. fs/ksmbd/smb2pdu.c lacks length validation in the non-padding case in smb2_write.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=5.15<5.18.8 | |
| 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 | <5.15.0-60.66 | 5.15.0-60.66 |
| ubuntu/linux | <5.19~ | 5.19~ |
| ubuntu/linux-aws | <5.15.0-1030.34 | 5.15.0-1030.34 |
| ubuntu/linux-aws | <5.19~ | 5.19~ |
| ubuntu/linux-aws-5.0 | <5.19~ | 5.19~ |
| ubuntu/linux-aws-5.15 | <5.15.0-1030.34~20.04.1 | 5.15.0-1030.34~20.04.1 |
| ubuntu/linux-aws-5.15 | <5.19~ | 5.19~ |
| ubuntu/linux-aws-5.4 | <5.19~ | 5.19~ |
| ubuntu/linux-aws-6.5 | <5.19~ | 5.19~ |
| ubuntu/linux-aws-fips | <5.19~ | 5.19~ |
| ubuntu/linux-aws-hwe | <5.19~ | 5.19~ |
| ubuntu/linux-azure | <5.15.0-1033.40 | 5.15.0-1033.40 |
| ubuntu/linux-azure | <5.19~ | 5.19~ |
| ubuntu/linux-azure-4.15 | <5.19~ | 5.19~ |
| ubuntu/linux-azure-5.15 | <5.15.0-1033.40~20.04.1 | 5.15.0-1033.40~20.04.1 |
| ubuntu/linux-azure-5.15 | <5.19~ | 5.19~ |
| ubuntu/linux-azure-5.4 | <5.19~ | 5.19~ |
| ubuntu/linux-azure-6.5 | <5.19~ | 5.19~ |
| ubuntu/linux-azure-edge | <5.19~ | 5.19~ |
| ubuntu/linux-azure-fde | <5.15.0-1033.40.1 | 5.15.0-1033.40.1 |
| ubuntu/linux-azure-fde | <5.19~ | 5.19~ |
| ubuntu/linux-azure-fde-5.15 | <5.15.0-1033.40~20.04.1.1 | 5.15.0-1033.40~20.04.1.1 |
| ubuntu/linux-azure-fde-5.15 | <5.19~ | 5.19~ |
| ubuntu/linux-azure-fips | <5.19~ | 5.19~ |
| ubuntu/linux-bluefield | <5.19~ | 5.19~ |
| ubuntu/linux-dell300x | <5.19~ | 5.19~ |
| ubuntu/linux-fips | <5.19~ | 5.19~ |
| ubuntu/linux-gcp | <5.15.0-1029.36 | 5.15.0-1029.36 |
| ubuntu/linux-gcp | <5.19~ | 5.19~ |
| ubuntu/linux-gcp-4.15 | <5.19~ | 5.19~ |
| ubuntu/linux-gcp-5.15 | <5.15.0-1029.36~20.04.1 | 5.15.0-1029.36~20.04.1 |
| ubuntu/linux-gcp-5.15 | <5.19~ | 5.19~ |
| ubuntu/linux-gcp-5.4 | <5.19~ | 5.19~ |
| ubuntu/linux-gcp-6.5 | <5.19~ | 5.19~ |
| ubuntu/linux-gcp-fips | <5.19~ | 5.19~ |
| ubuntu/linux-gke | <5.15.0-1027.32 | 5.15.0-1027.32 |
| ubuntu/linux-gke | <5.19~ | 5.19~ |
| ubuntu/linux-gke-4.15 | <5.19~ | 5.19~ |
| ubuntu/linux-gke-5.0 | <5.19~ | 5.19~ |
| ubuntu/linux-gke-5.15 | <5.15.0-1027.32~20.04.1 | 5.15.0-1027.32~20.04.1 |
| ubuntu/linux-gke-5.15 | <5.19~ | 5.19~ |
| ubuntu/linux-gke-5.4 | <5.19~ | 5.19~ |
| ubuntu/linux-gkeop | <5.15.0-1015.19 | 5.15.0-1015.19 |
| ubuntu/linux-gkeop | <5.19~ | 5.19~ |
| ubuntu/linux-gkeop-5.15 | <5.19~ | 5.19~ |
| ubuntu/linux-gkeop-5.4 | <5.19~ | 5.19~ |
| ubuntu/linux-hwe | <5.19~ | 5.19~ |
| ubuntu/linux-hwe-5.15 | <5.15.0-60.66~20.04.1 | 5.15.0-60.66~20.04.1 |
| ubuntu/linux-hwe-5.15 | <5.19~ | 5.19~ |
| ubuntu/linux-hwe-5.4 | <5.19~ | 5.19~ |
| ubuntu/linux-hwe-6.5 | <5.19~ | 5.19~ |
| ubuntu/linux-hwe-edge | <5.19~ | 5.19~ |
| ubuntu/linux-ibm | <5.15.0-1025.28 | 5.15.0-1025.28 |
| ubuntu/linux-ibm | <5.19~ | 5.19~ |
| ubuntu/linux-ibm-5.15 | <5.19~ | 5.19~ |
| ubuntu/linux-ibm-5.4 | <5.19~ | 5.19~ |
| ubuntu/linux-intel | <5.19~ | 5.19~ |
| ubuntu/linux-intel-5.13 | <5.19~ | 5.19~ |
| ubuntu/linux-intel-iotg | <5.15.0-1025.30 | 5.15.0-1025.30 |
| ubuntu/linux-intel-iotg | <5.19~ | 5.19~ |
| ubuntu/linux-intel-iotg-5.15 | <5.15.0-1025.30~20.04.1 | 5.15.0-1025.30~20.04.1 |
| ubuntu/linux-intel-iotg-5.15 | <5.19~ | 5.19~ |
| ubuntu/linux-iot | <5.19~ | 5.19~ |
| ubuntu/linux-kvm | <5.15.0-1028.33 | 5.15.0-1028.33 |
| ubuntu/linux-kvm | <5.19~ | 5.19~ |
| ubuntu/linux-laptop | <5.19~ | 5.19~ |
| ubuntu/linux-lowlatency | <5.15.0-60.66 | 5.15.0-60.66 |
| ubuntu/linux-lowlatency | <5.19~ | 5.19~ |
| ubuntu/linux-lowlatency-hwe-5.15 | <5.15.0-60.66~20.04.1 | 5.15.0-60.66~20.04.1 |
| ubuntu/linux-lowlatency-hwe-5.15 | <5.19~ | 5.19~ |
| ubuntu/linux-lowlatency-hwe-6.5 | <5.19~ | 5.19~ |
| ubuntu/linux-lts-xenial | <5.19~ | 5.19~ |
| ubuntu/linux-nvidia | <5.19~ | 5.19~ |
| ubuntu/linux-nvidia-6.5 | <5.19~ | 5.19~ |
| ubuntu/linux-nvidia-6.8 | <5.19~ | 5.19~ |
| ubuntu/linux-nvidia-lowlatency | <5.19~ | 5.19~ |
| ubuntu/linux-oem | <5.19~ | 5.19~ |
| ubuntu/linux-oem-5.10 | <5.19~ | 5.19~ |
| ubuntu/linux-oem-5.14 | <5.19~ | 5.19~ |
| ubuntu/linux-oem-5.17 | <5.19~ | 5.19~ |
| ubuntu/linux-oem-5.6 | <5.19~ | 5.19~ |
| ubuntu/linux-oem-6.0 | <5.19~ | 5.19~ |
| ubuntu/linux-oem-6.5 | <5.19~ | 5.19~ |
| ubuntu/linux-oem-6.8 | <5.19~ | 5.19~ |
| ubuntu/linux-oem-osp1 | <5.19~ | 5.19~ |
| ubuntu/linux-oracle | <5.15.0-1029.35 | 5.15.0-1029.35 |
| ubuntu/linux-oracle | <5.19~ | 5.19~ |
| ubuntu/linux-oracle-5.0 | <5.19~ | 5.19~ |
| ubuntu/linux-oracle-5.13 | <5.19~ | 5.19~ |
| ubuntu/linux-oracle-5.15 | <5.15.0-1029.35~20.04.1 | 5.15.0-1029.35~20.04.1 |
| ubuntu/linux-oracle-5.15 | <5.19~ | 5.19~ |
| ubuntu/linux-oracle-5.4 | <5.19~ | 5.19~ |
| ubuntu/linux-oracle-6.5 | <5.19~ | 5.19~ |
| ubuntu/linux-raspi | <5.15.0-1024.26 | 5.15.0-1024.26 |
| ubuntu/linux-raspi | <5.19~ | 5.19~ |
| ubuntu/linux-raspi-5.4 | <5.19~ | 5.19~ |
| ubuntu/linux-raspi2 | <5.19~ | 5.19~ |
| ubuntu/linux-riscv | <5.19~ | 5.19~ |
| ubuntu/linux-riscv-5.15 | <5.19~ | 5.19~ |
| ubuntu/linux-riscv-6.5 | <5.19~ | 5.19~ |
| ubuntu/linux-snapdragon | <5.19~ | 5.19~ |
| ubuntu/linux-starfive | <5.19~ | 5.19~ |
| ubuntu/linux-starfive-6.5 | <5.19~ | 5.19~ |
| ubuntu/linux-xilinx-zynqmp | <5.19~ | 5.19~ |
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Reference Links
- http://www.openwall.com/lists/oss-security/2022/12/23/10
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.18
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=158a66b245739e15858de42c0ba60fcf3de9b8e6
- https://github.com/torvalds/linux/commit/158a66b245739e15858de42c0ba60fcf3de9b8e6
- https://launchpad.net/bugs/cve/CVE-2022-47940
- https://www.openwall.com/lists/oss-security/2022/12/23/10
- https://www.zerodayinitiative.com/advisories/ZDI-22-1691/
- https://ubuntu.com/security/notices/USN-5851-1
- https://ubuntu.com/security/notices/USN-5860-1
- https://ubuntu.com/security/notices/USN-5876-1
- https://ubuntu.com/security/notices/USN-5877-1
- https://www.cve.org/CVERecord?id=CVE-2022-47940
- https://nvd.nist.gov/vuln/detail/CVE-2022-47940
- https://security-tracker.debian.org/tracker/CVE-2022-47940
- https://git.kernel.org/linus/e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9
- https://git.kernel.org/linus/158a66b245739e15858de42c0ba60fcf3de9b8e6
- https://ubuntu.com/security/CVE-2022-47940
- collector/nvd-index
- agent/type
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- agent/author
- agent/remedy
- agent/weakness
- agent/severity
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/description
- agent/references
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/tags
- agent/event
- collector/usn-cve
- source/Ubuntu
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/5.15
- package-manager/debian
- package-manager/ubuntu