CVE-2023-52679 Affecting kernel-rt-debuginfo-common-x86_64 package, versions <0:4.18.0-553.16.1.rt7.357.el8_10


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-ROCKY8-KERNELRTDEBUGINFOCOMMONX8664-7779985
  • published22 Aug 2024
  • disclosed17 May 2024

Introduced: 17 May 2024

CVE-2023-52679  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 kernel-rt-debuginfo-common-x86_64 to version 0:4.18.0-553.16.1.rt7.357.el8_10 or higher.
This issue was patched in RLSA-2024:5102.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debuginfo-common-x86_64 package and not the kernel-rt-debuginfo-common-x86_64 package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux: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