CVE-2023-31085

MEDIUM5.5

An issue was discovered in drivers/mtd/ubi/cdev

Published Apr 24, 2023

Modified 1 years ago

Details

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

WEBhttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=017c73a34a661a861712f7cc1393a123e5b2208c WEBhttps://lore.kernel.org/all/687864524.118195.1681799447034.JavaMail.zimbra%40nod.at/WEBhttps://security.netapp.com/advisory/ntap-20230929-0003/ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2023-31085

CVSS Analysis

CVSS v3.1

5.5

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

NoneI:N

Availability

HighA:H

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

Ecosystems

Timeline

PublishedApr 24, 2023

ModifiedAug 2, 2024