CVE-2023-53657: linux kernel Null Dereference — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: ice: Don't tx before switchdev is fully configured There is possibility that ice_eswitch_port_start_xmit might be called while some resources are still not allocated which might cause NULL pointer dereference. Fix this by checking if switchdev configuration was finished.

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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-476 CWE-476

Affected Products

Vendor	Product	Versions
linux	linux_kernel	5.16 — 6.1.55
linux	linux_kernel	6.2 — 6.5.5

References

Advisories & Patches

https://git.kernel.org/stable/c/5760a72b3060150b587eff3e879648c7470efddd https://git.kernel.org/stable/c/63ff5a94649837d980e3b9ef535c793ec8cb0ca7 https://git.kernel.org/stable/c/7aa529a69e92b9aff585e569d5003f7c15d8d60b

Frequently Asked Questions

What is CVE-2023-53657? +

In the Linux kernel, the following vulnerability has been resolved: ice: Don't tx before switchdev is fully configured There is possibility that ice_eswitch_port_start_xmit might be called while some resources are still not allocated which might cause NULL pointer dereference. Fix this by checking if switchdev configuration was finished. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-53657? +

CVE-2023-53657 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-2023-53657? +

CVE-2023-53657 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-2023-53657? +

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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