CVE-2023-52679 Affecting kernel-modules package, versions <0:4.18.0-553.16.1.el8_10


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-ORACLE8-KERNELMODULES-7674050
  • published10 Aug 2024
  • disclosed17 May 2024

Introduced: 17 May 2024

CVE-2023-52679  (opens in a new tab)

How to fix?

Upgrade Oracle:8 kernel-modules to version 0:4.18.0-553.16.1.el8_10 or higher.
This issue was patched in ELSA-2024-5101.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-modules package and not the kernel-modules package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

of: Fix double free in of_parse_phandle_with_args_map

In of_parse_phandle_with_args_map() the inner loop that iterates through the map entries calls of_node_put(new) to free the reference acquired by the previous iteration of the inner loop. This assumes that the value of "new" is NULL on the first iteration of the inner loop.

Make sure that this is true in all iterations of the outer loop by setting "new" to NULL after its value is assigned to "cur".

Extend the unittest to detect the double free and add an additional test case that actually triggers this path.

CVSS Scores

version 3.1