CVE-2023-31085 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Vendors	Products
Linux	Linux Kernel

Configuration 1 [-]

cpe:2.3:o:linux:linux_kernel:6.2:*:*:*:*:*:*:*

No data.

References

Link	Providers
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
https://cert-portal.siemens.com/productcert/html/ssa-769027.html
https://cert-portal.siemens.com/productcert/html/ssa-794697.html
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=017c73a34a661a861712f7cc1393a123e5b2208c
https://lore.kernel.org/all/687864524.118195.1681799447034.JavaMail.zimbra%40nod.at/
https://nvd.nist.gov/vuln/detail/CVE-2023-31085
https://security.netapp.com/advisory/ntap-20230929-0003/
https://www.cve.org/CVERecord?id=CVE-2023-31085

History

Wed, 14 Oct 2026 23:30:00 +0000

Type	Values Removed	Values Added
References		https://cert-portal.siemens.com/productcert/html/ssa-398330.html https://cert-portal.siemens.com/productcert/html/ssa-769027.html https://cert-portal.siemens.com/productcert/html/ssa-794697.html

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2023-04-24T00:00:00.000Z

Updated: 2026-10-14T23:07:57.916Z

Reserved: 2023-04-24T00:00:00.000Z

Link: CVE-2023-31085

Vulnrichment

No data.

NVD

Status : Modified

Published: 2023-04-24T06:15:08.093

Modified: 2026-10-14T23:17:18.580

Link: CVE-2023-31085

Redhat

Severity : Moderate

Publid Date: 2023-04-18T00:00:00Z

Links: CVE-2023-31085 - Bugzilla

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