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Vulnerability Details CVE-2023-52596

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 0.9%
CVSS Severity
CVSS v3 Score 5.5
Products affected by CVE-2023-52596


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