CVE-2022-24448
kernel: nfs_atomic_open() returns uninitialized data instead of ENOTDIR
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
An issue was discovered in fs/nfs/dir.c in the Linux kernel before 5.16.5. If an application sets the O_DIRECTORY flag, and tries to open a regular file, nfs_atomic_open() performs a regular lookup. If a regular file is found, ENOTDIR should occur, but the server instead returns uninitialized data in the file descriptor.
Se ha detectado un problema en el archivo fs/nfs/dir.c en el kernel de Linux versiones anteriores a 5.16.5. Si una aplicación establece la bandera O_DIRECTORY, y trata de abrir un archivo regular, la función nfs_atomic_open() lleva a cabo una búsqueda regular. Si es encontrado un archivo regular, debería producirse ENOTDIR, pero el servidor en su lugar devuelve datos no inicializados en el descriptor de archivo
A flaw was found in the Linux kernel. When an application tries to open a directory (using the O_DIRECTORY flag) in a mounted NFS filesystem, a lookup operation is performed. If the NFS server returns a file as a result of the lookup, the NFS filesystem returns an uninitialized file descriptor instead of the expected ENOTDIR value. This flaw leads to the kernel's data leak into the userspace.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2022-02-04 CVE Reserved
- 2022-02-04 CVE Published
- 2023-05-12 EPSS Updated
- 2024-08-03 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-755: Improper Handling of Exceptional Conditions
- CWE-908: Use of Uninitialized Resource
CAPEC
References (12)
| URL | Tag | Source |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html | Mailing List |
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| https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html | Mailing List |
|
| https://lore.kernel.org/all/67d6a536-9027-1928-99b6-af512a36cd1a%40huawei.com/T | X_refsource_misc |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.debian.org/security/2022/dsa-5092 | 2023-11-07 | |
| https://www.debian.org/security/2022/dsa-5096 | 2023-11-07 | |
| https://access.redhat.com/security/cve/CVE-2022-24448 | 2024-02-07 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2051444 | 2024-02-07 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | < 5.16.5 Search vendor "Linux" for product "Linux Kernel" and version " < 5.16.5" | - |
Affected
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| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
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| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0" | - |
Affected
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| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 11.0 Search vendor "Debian" for product "Debian Linux" and version "11.0" | - |
Affected
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