CVE-2023-31085

medium

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.

References

https://www.cisa.gov/news-events/ics-advisories/icsa-25-044-09

https://security.netapp.com/advisory/ntap-20230929-0003/

https://lore.kernel.org/all/687864524.118195.1681799447034.JavaMail.zimbra%40nod.at/

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=017c73a34a661a861712f7cc1393a123e5b2208c

Details

Source: Mitre, NVD

Published: 2023-04-24

Updated: 2024-03-25

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H