CVE-2023-31085

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Summary

CVECVE-2023-31085
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-04-24 06:15:08 UTC
Updated2026-10-14 23:17:18 UTC
DescriptionAn 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.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

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

EPSS: 0.003790000 probability, percentile 0.301950000 (date 2026-10-14)

Problem Types: CWE-369 | n/a

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel 6.2 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected V1.1 custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified

References

ReferenceSourceLinkTags
cert-portal.siemens.com/productcert/html/ssa-398330.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit af854a3a-2127-422b-91ae-364da2661108 git.kernel.org
Re: BUG: divide error in ubi_attach_mtd_dev - Richard Weinberger af854a3a-2127-422b-91ae-364da2661108 lore.kernel.org
cert-portal.siemens.com/productcert/html/ssa-769027.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
April 2023 Linux Kernel 6.2 Vulnerabilities in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com
cert-portal.siemens.com/productcert/html/ssa-794697.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
Re: BUG: divide error in ubi_attach_mtd_dev - Richard Weinberger MITRE lore.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 199881 Ubuntu Security Notification for Linux kernel (OEM) Vulnerabilities (USN-6461-1)
  • 199930 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6495-1)
  • 199933 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6502-1)
  • 199935 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6496-1)
  • 199936 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6494-1)
  • 199938 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6503-1)
  • 199952 Ubuntu Security Notification for Linux kernel (Oracle) Vulnerabilities (USN-6502-2)
  • 199955 Ubuntu Security Notification for Linux kernel (Intel IoTG) Vulnerabilities (USN-6516-1)
  • 199957 Ubuntu Security Notification for Linux kernel (StarFive) Vulnerabilities (USN-6520-1)
  • 199958 Ubuntu Security Notification for Linux kernel (NVIDIA) Vulnerabilities (USN-6502-3)
  • 199970 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6494-2)
  • 199971 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6496-2)
  • 199972 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6495-2)
  • 199973 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6502-4)
  • 199979 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6532-1)
  • 199982 Ubuntu Security Notification for Linux kernel (GCP) Vulnerability (USN-6537-1)
  • 356562 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.4-2023-055
  • 356612 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.10-2023-042
  • 379043 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX3-SA-2023:0136)
  • 379435 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX2-SA-2024:0012)
  • 6140261 AWS Bottlerocket Security Update for kernel (GHSA-hwg9-jjjx-wjv2)
  • 673534 EulerOS Security Update for kernel (EulerOS-SA-2024-1086)
  • 673563 EulerOS Security Update for kernel (EulerOS-SA-2024-1144)
  • 673657 EulerOS Security Update for kernel (EulerOS-SA-2024-1122)
  • 673714 EulerOS Security Update for kernel (EulerOS-SA-2024-1196)
  • 673902 EulerOS Security Update for kernel (EulerOS-SA-2024-1176)
  • 673923 EulerOS Security Update for kernel (EulerOS-SA-2024-1062)
  • 673995 EulerOS Security Update for kernel (EulerOS-SA-2024-1275)
  • 674024 EulerOS Security Update for kernel (EulerOS-SA-2024-1107)
  • 755235 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:4377-1)
  • 755238 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:4378-1)
  • 755240 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:4375-1)
  • 755249 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:4414-1)
  • 755563 SUSE Security Update for the linux kernel (SUSE-SU-2023:4351-1)
  • 755564 SUSE Security Update for the linux kernel (SUSE-SU-2023:4348-1)
  • 755565 SUSE Security Update for the linux kernel (SUSE-SU-2023:4347-1)
  • 755566 SUSE Security Update for the linux kernel (SUSE-SU-2023:4345-1)
  • 755567 SUSE Security Update for the linux kernel (SUSE-SU-2023:4343-1)

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