CVE-2023-52679

HIGH
Published May 17, 2024 Modified Jan 10, 2025 CWE-415

Description

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.

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CVSS v3.1 Score

7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-415 CWE-415

Affected Products

Vendor Product
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
debian debian_linux

References

Advisories & Patches

https://git.kernel.org/stable/c/26b4d702c44f9e5cf3c5c001ae619a4a001889db https://git.kernel.org/stable/c/4541004084527ce9e95a818ebbc4e6b293ffca21 https://git.kernel.org/stable/c/4dde83569832f9377362e50f7748463340c5db6b https://git.kernel.org/stable/c/a0a061151a6200c13149dbcdb6c065203c8425d2 https://git.kernel.org/stable/c/b64d09a4e8596f76d27f4b4a90a1cf6baf6a82f8 https://git.kernel.org/stable/c/b9d760dae5b10e73369b769073525acd7b3be2bd https://git.kernel.org/stable/c/cafa992134124e785609a406da4ff2b54052aff7 https://git.kernel.org/stable/c/d5f490343c77e6708b6c4aa7dbbfbcbb9546adea https://git.kernel.org/stable/c/26b4d702c44f9e5cf3c5c001ae619a4a001889db https://git.kernel.org/stable/c/4541004084527ce9e95a818ebbc4e6b293ffca21 https://git.kernel.org/stable/c/4dde83569832f9377362e50f7748463340c5db6b https://git.kernel.org/stable/c/a0a061151a6200c13149dbcdb6c065203c8425d2 https://git.kernel.org/stable/c/b64d09a4e8596f76d27f4b4a90a1cf6baf6a82f8 https://git.kernel.org/stable/c/b9d760dae5b10e73369b769073525acd7b3be2bd https://git.kernel.org/stable/c/cafa992134124e785609a406da4ff2b54052aff7 https://git.kernel.org/stable/c/d5f490343c77e6708b6c4aa7dbbfbcbb9546adea

Frequently Asked Questions

What is CVE-2023-52679? +
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. It has a CVSS v3.1 base score of 7.8 (HIGH).
How severe is CVE-2023-52679? +
CVE-2023-52679 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2023-52679? +
CVE-2023-52679 affects products from debian, linux, specifically: debian_linux, linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2023-52679? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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