CVE-2023-53687: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: tty: serial: samsung_tty: Fix a memory leak in s3c24xx_serial_getclk() when iterating clk When the best clk is searched, we iterate over all possible clk. If we find a better match, the previous one, if any, needs to be freed. If a better match has already been found, we still need to free the new one, otherwise it leaks.

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CVSS v3.1 Score

5.5

MEDIUM

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

Weakness Type (CWE)

CWE-401 CWE-401

Affected Products

Vendor	Product	Versions
linux	linux_kernel	3.3 — 4.14.322
linux	linux_kernel	4.15 — 4.19.291
linux	linux_kernel	4.20 — 5.4.251
linux	linux_kernel	5.5 — 5.10.188
linux	linux_kernel	5.11 — 5.15.121
linux	linux_kernel	5.16 — 6.1.40
linux	linux_kernel	6.2 — 6.4.5

References

Advisories & Patches

https://git.kernel.org/stable/c/01dd8a43a84616c830782166ba3cceb01ad95363 https://git.kernel.org/stable/c/1962717c4649e026a4252fe6625175affd28a593 https://git.kernel.org/stable/c/1f426293fef1c13742b2a685bf7e363f51f6ee03 https://git.kernel.org/stable/c/46574e5a0a2aee41e6ebb979cfe1dbaea8693e16 https://git.kernel.org/stable/c/832e231cff476102e8204a9e7bddfe5c6154a375 https://git.kernel.org/stable/c/933e5b2998bc3a527d15efbf1e97c9e63297aa3c https://git.kernel.org/stable/c/9dd8091959bc41fee51d0827276a2b982e84adf0 https://git.kernel.org/stable/c/f0bf102ef9b05d7294bd8d506755465f6867d944

Frequently Asked Questions

What is CVE-2023-53687? +

In the Linux kernel, the following vulnerability has been resolved: tty: serial: samsung_tty: Fix a memory leak in s3c24xx_serial_getclk() when iterating clk When the best clk is searched, we iterate over all possible clk. If we find a better match, the previous one, if any, needs to be freed. If a better match has already been found, we still need to free the new one, otherwise it leaks. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-53687? +

CVE-2023-53687 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2023-53687? +

CVE-2023-53687 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-53687? +

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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CVE-2023-53687