Vulnerability Description
An issue was discovered in drivers/mtd/ubi/cdev.c in the Linux kernel 6.2. There is a divide-by-zero error in do_div(sz,mtd->erasesize), used indirectly by ctrl_cdev_ioctl, when mtd->erasesize is 0.
CVSS Score
5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | 6.2 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=017c7
- https://lore.kernel.org/all/687864524.118195.1681799447034.JavaMail.zimbra%40nod
- https://security.netapp.com/advisory/ntap-20230929-0003/
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=017c7
- https://lore.kernel.org/all/687864524.118195.1681799447034.JavaMail.zimbra%40nod
- https://security.netapp.com/advisory/ntap-20230929-0003/
FAQ
What is CVE-2023-31085?
CVE-2023-31085 is a vulnerability with a CVSS score of 5.5 (MEDIUM). An issue was discovered in drivers/mtd/ubi/cdev.c in the Linux kernel 6.2. There is a divide-by-zero error in do_div(sz,mtd->erasesize), used indirectly by ctrl_cdev_ioctl, when mtd->erasesize is 0.
How severe is CVE-2023-31085?
CVE-2023-31085 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-2023-31085?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.