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In the Linux kernel, the following vulnerability has been...

Unreviewed Published Mar 6, 2024 to the GitHub Advisory Database • Updated Mar 6, 2024

Package

No package listedSuggest a package

Affected versions

Unknown

Patched versions

Unknown

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.

References

Published by the National Vulnerability Database Mar 6, 2024
Published to the GitHub Advisory Database Mar 6, 2024
Last updated Mar 6, 2024

Severity

Unknown

Weaknesses

No CWEs

CVE ID

CVE-2023-52596

GHSA ID

GHSA-ffqx-hmw2-p5jv

Source code

No known source code

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

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