Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 6.6.16 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/15893975e9e382f8294ea8d926f08dc2d8d39edeMailing ListPatch
- https://git.kernel.org/stable/c/2ae7081bc10123b187e36a4f3a8e53768de31489Mailing ListPatch
- https://git.kernel.org/stable/c/315552310c7de92baea4e570967066569937a843Mailing ListPatch
- https://git.kernel.org/stable/c/15893975e9e382f8294ea8d926f08dc2d8d39edeMailing ListPatch
- https://git.kernel.org/stable/c/2ae7081bc10123b187e36a4f3a8e53768de31489Mailing ListPatch
- https://git.kernel.org/stable/c/315552310c7de92baea4e570967066569937a843Mailing ListPatch
FAQ
What is CVE-2023-52596?
CVE-2023-52596 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 se...
How severe is CVE-2023-52596?
CVE-2023-52596 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-52596?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.