Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: can: etas_es58x: fix potential NULL pointer dereference on udev->serial The driver assumed that es58x_dev->udev->serial could never be NULL. While this is true on commercially available devices, an attacker could spoof the device identity providing a NULL USB serial number. That would trigger a NULL pointer dereference. Add a check on es58x_dev->udev->serial before accessing it.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.2, < 6.6.79 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/1590667a60753ee5a54871f2840ceefd4a7831faPatch
- https://git.kernel.org/stable/c/5059ea98d7bc133903d3e47ab36df6ed11d0c95fPatch
- https://git.kernel.org/stable/c/722e8e1219c8b6ac2865011fe339315d6a8d0721Patch
- https://git.kernel.org/stable/c/a1ad2109ce41c9e3912dadd07ad8a9c640064ffbPatch
FAQ
What is CVE-2025-21773?
CVE-2025-21773 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: can: etas_es58x: fix potential NULL pointer dereference on udev->serial The driver assumed that es58x_dev->udev->serial could neve...
How severe is CVE-2025-21773?
CVE-2025-21773 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-21773?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.