CVE-2023-52596
sysctl: Fix out of bounds access for empty sysctl registers
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
In the Linux kernel, the following vulnerability has been resolved:
sysctl: Fix out of bounds access for empty sysctl registers
When registering tables to the sysctl subsystem there is a check to see
if header is a permanently empty directory (used for mounts). This check
evaluates the first element of the ctl_table. This results in an out of
bounds evaluation when registering empty directories.
The function register_sysctl_mount_point now passes a ctl_table of size
1 instead of size 0. It now relies solely on the type to identify
a permanently empty register.
Make sure that the ctl_table has at least one element before testing for
permanent emptiness.
En el kernel de Linux, se resolvió la siguiente vulnerabilidad: sysctl: corrige el acceso fuera de los límites para registros sysctl vacíos. Al registrar tablas en el subsistema sysctl, se verifica si el encabezado es un directorio permanentemente vacío (usado para montajes). Esta verificación evalúa el primer elemento de ctl_table. Esto da como resultado una evaluación fuera de los límites al registrar directorios vacíos. La función Register_sysctl_mount_point ahora pasa un ctl_table de tamaño 1 en lugar de tamaño 0. Ahora se basa únicamente en el tipo para identificar un registro permanentemente vacío. Asegúrese de que ctl_table tenga al menos un elemento antes de probar el vacío permanente.
CVSS Scores
SSVC
- Decision:Track
Timeline
- 2024-03-02 CVE Reserved
- 2024-03-06 CVE Published
- 2024-03-06 EPSS Updated
- 2024-08-02 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (3)
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
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| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | < 6.6.16 Search vendor "Linux" for product "Linux Kernel" and version " < 6.6.16" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | < 6.7.4 Search vendor "Linux" for product "Linux Kernel" and version " < 6.7.4" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | < 6.8 Search vendor "Linux" for product "Linux Kernel" and version " < 6.8" | en |
Affected
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