What is CVE-2023-31085?

CVE-2023-31085 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Divide By Zero flaw (CWE-369). CVE-2023-31085 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-31085?

CVE-2023-31085 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2023-31085?

No patch is currently available for CVE-2023-31085. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2023-31085 actively exploited?

CVE-2023-31085 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Divide By Zero (CWE-369)?

The product divides a value by zero, causing a crash or unexpected behaviour. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/369.html

CVE-2023-31085

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.

Package Linux Kernel

Published 2023-04-24

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-369

CVE-2023-31085 is a Divide By Zero vulnerability

What is Divide By Zero?

The product divides a value by zero, causing a crash or unexpected behaviour. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2023-31085 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel.org
https://lore.kernel.org/all/687864524.118195.1681799447034.JavaMail.zimbra%40nod.at/
Security
https://security.netapp.com/advisory/ntap-20230929-0003/
Kernel patch commit
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=017c73a34a661a861712f7cc1393a123e5b2208c
Patch

Details

CVE ID CVE-2023-31085

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2023-04-24

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2023-31085?

CVE-2023-31085 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a Divide By Zero flaw (CWE-369) . CVE-2023-31085 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-31085?

CVE-2023-31085 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2023-31085?

No patch is currently available for CVE-2023-31085. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2023-31085 actively exploited?

No — CVE-2023-31085 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Divide By Zero (CWE-369)?

The product divides a value by zero, causing a crash or unexpected behaviour. View CWE-369 on MITRE CWE →