crítica
CVE-2022-47939
kernel: smb2_tree_disconnect() fails to validate object existance prior to performing opertions on it
En la Trivy database desde, como mínimo, el 24 oct 2026, 07:11 UTCNo consta cuándo entró antes de ese build.
Severidad por fuente
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
La etiqueta propia de Trivy es CRITICAL. Crítica según NVD, Red Hat, CBL-Mariner. Más baja según Ubuntu (media).
Descripción
An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. fs/ksmbd/smb2pdu.c has a use-after-free and OOPS for SMB2_TREE_DISCONNECT.
Paquetes afectados y versiones corregidas
| Fuente | Paquete | Corregido en |
|---|---|---|
| CBL-Mariner 2.0 | kernel | 0:5.15.86.1-1.cm2 |
| debian 12 | linux | 5.19.6-1 |
| debian 13 | linux | 5.19.6-1 |
| debian 14 | linux | 5.19.6-1 |
| echo | linux | 5.19.6-1 |
| root.io debian 12 | rootio-linux | 5.19.6-1 |
| root.io debian 13 | rootio-linux | 5.19.6-1 |
| root.io ubuntu 22.04 | rootio-linux | 5.15.0-53.59 |
| ubuntu 20.04 | linux-aws-5.15, linux-azure-5.15, linux-azure-fde-5.15 y 8 más | 5.15.0-1023.27~20.04.1 y 8 más |
| ubuntu 20.04-ESM | linux-aws-5.15, linux-azure-5.15, linux-azure-fde-5.15 y 8 más | 5.15.0-1023.27~20.04.1 y 8 más |
| ubuntu 22.04 | linux, linux-aws, linux-azure y 12 más | 5.15.0-53.59 y 12 más |
Mostrar las 45 entradas de 11 fuentes
| Fuente | Paquete | Corregido en |
|---|---|---|
| CBL-Mariner 2.0 | kernel | 0:5.15.86.1-1.cm2 |
| debian 12 | linux | 5.19.6-1 |
| debian 13 | linux | 5.19.6-1 |
| debian 14 | linux | 5.19.6-1 |
| echo | linux | 5.19.6-1 |
| root.io debian 12 | rootio-linux | 5.19.6-1 |
| root.io debian 13 | rootio-linux | 5.19.6-1 |
| root.io ubuntu 22.04 | rootio-linux | 5.15.0-53.59 |
| ubuntu 20.04 | linux-aws-5.15 | 5.15.0-1023.27~20.04.1 |
| ubuntu 20.04 | linux-azure-5.15 | 5.15.0-1023.29~20.04.1 |
| ubuntu 20.04 | linux-azure-fde-5.15 | 5.15.0-1029.36~20.04.1.1 |
| ubuntu 20.04 | linux-gcp-5.15 | 5.15.0-1022.29~20.04.1 |
| ubuntu 20.04 | linux-gke-5.15 | 5.15.0-1020.25~20.04.1 |
| ubuntu 20.04 | linux-gkeop-5.15 | 5.15.0-1008.12~20.04.1 |
| ubuntu 20.04 | linux-hwe-5.15 | 5.15.0-53.59~20.04.1 |
| ubuntu 20.04 | linux-intel-iotg-5.15 | 5.15.0-1018.23~20.04.1 |
| ubuntu 20.04 | linux-lowlatency-hwe-5.15 | 5.15.0-53.59~20.04.1 |
| ubuntu 20.04 | linux-oracle-5.15 | 5.15.0-1022.28~20.04.1 |
| ubuntu 20.04 | linux-riscv-5.15 | 5.15.0-1023.27~20.04.1 |
| ubuntu 20.04-ESM | linux-aws-5.15 | 5.15.0-1023.27~20.04.1 |
| ubuntu 20.04-ESM | linux-azure-5.15 | 5.15.0-1023.29~20.04.1 |
| ubuntu 20.04-ESM | linux-azure-fde-5.15 | 5.15.0-1029.36~20.04.1.1 |
| ubuntu 20.04-ESM | linux-gcp-5.15 | 5.15.0-1022.29~20.04.1 |
| ubuntu 20.04-ESM | linux-gke-5.15 | 5.15.0-1020.25~20.04.1 |
| ubuntu 20.04-ESM | linux-gkeop-5.15 | 5.15.0-1008.12~20.04.1 |
| ubuntu 20.04-ESM | linux-hwe-5.15 | 5.15.0-53.59~20.04.1 |
| ubuntu 20.04-ESM | linux-intel-iotg-5.15 | 5.15.0-1018.23~20.04.1 |
| ubuntu 20.04-ESM | linux-lowlatency-hwe-5.15 | 5.15.0-53.59~20.04.1 |
| ubuntu 20.04-ESM | linux-oracle-5.15 | 5.15.0-1022.28~20.04.1 |
| ubuntu 20.04-ESM | linux-riscv-5.15 | 5.15.0-1023.27~20.04.1 |
| ubuntu 22.04 | linux | 5.15.0-53.59 |
| ubuntu 22.04 | linux-aws | 5.15.0-1023.27 |
| ubuntu 22.04 | linux-azure | 5.15.0-1023.29 |
| ubuntu 22.04 | linux-azure-fde | 5.15.0-1024.30.1 |
| ubuntu 22.04 | linux-gcp | 5.15.0-1022.29 |
| ubuntu 22.04 | linux-gke | 5.15.0-1020.25 |
| ubuntu 22.04 | linux-gkeop | 5.15.0-1008.12 |
| ubuntu 22.04 | linux-ibm | 5.15.0-1018.21 |
| ubuntu 22.04 | linux-intel-iotg | 5.15.0-1018.23 |
| ubuntu 22.04 | linux-kvm | 5.15.0-1021.26 |
| ubuntu 22.04 | linux-lowlatency | 5.15.0-53.59 |
| ubuntu 22.04 | linux-nvidia | 5.15.0-1015.15 |
| ubuntu 22.04 | linux-oracle | 5.15.0-1022.28 |
| ubuntu 22.04 | linux-raspi | 5.15.0-1018.20 |
| ubuntu 22.04 | linux-riscv | 5.15.0-1023.27 |
Referencias
- http://www.openwall.com/lists/oss-security/2022/12/23/10
- https://access.redhat.com/security/cve/CVE-2022-47939
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cf6531d98190fa2cf92a6d8bbc8af0a4740a223c
- https://github.com/torvalds/linux/commit/cf6531d98190fa2cf92a6d8bbc8af0a4740a223c
- https://nvd.nist.gov/vuln/detail/CVE-2022-47939
- https://www.cve.org/CVERecord?id=CVE-2022-47939
- https://www.openwall.com/lists/oss-security/2022/12/22/9