UBUNTU-CVE-2023-31085

Advisory lineage Upstream: 1 Downstream: 14
Upstream
CVE-2023-31085
Published: 24 Apr 2023, 06:15
Last modified:03 Jun 2026, 13:36

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

24 Apr 2023, 06:15
Published
Vulnerability first disclosed
03 Jun 2026, 13:36
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Systems

  • ubuntu•linux

    all | < 4.4.0-248.282 | < 4.15.0-220.231 | < 5.4.0-167.184 | < 5.15.0-89.99

  • ubuntu•linux-allwinner-5.19

    all

  • ubuntu•linux-aws

    < 4.4.0-1125.131 | < 4.4.0-1163.178 | < 4.15.0-1163.176 | < 5.4.0-1114.124 | < 5.15.0-1050.55

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    all

  • ubuntu•linux-aws-5.13

    all

  • ubuntu•linux-aws-5.15

    < 5.15.0-1050.55~20.04.1

  • ubuntu•linux-aws-5.19

    all

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1114.124~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-6.2

    < 6.2.0-1016.16~22.04.1

  • ubuntu•linux-aws-6.5

    all

  • ubuntu•linux-aws-fips

    < 4.15.0-2102.108 | all | < 5.4.0-1114.124+fips1

  • ubuntu•linux-aws-hwe

    < 4.15.0-1163.176~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1172.187~14.04.1 | < 4.15.0-1172.187~16.04.1 | all | < 5.4.0-1120.127 | < 5.15.0-1052.60

  • ubuntu•linux-azure-4.15

    < 4.15.0-1172.187

  • ubuntu•linux-azure-5.11

    all

  • ubuntu•linux-azure-5.13

    all

  • ubuntu•linux-azure-5.15

    < 5.15.0-1052.60~20.04.1

  • ubuntu•linux-azure-5.19

    all

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1120.127~18.04.1

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-6.2

    < 6.2.0-1017.17~22.04.1

  • ubuntu•linux-azure-6.5

    all

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    all | < 5.15.0-1052.60.1 | all

  • ubuntu•linux-azure-fde-5.19

    all

  • ubuntu•linux-azure-fde-6.2

    < 6.2.0-1017.17~22.04.1.1

  • ubuntu•linux-azure-fde-6.8

    all

  • ubuntu•linux-azure-fips

    < 4.15.0-2081.87 | all | < 5.4.0-1121.128+fips1

  • ubuntu•linux-bluefield

    < 5.15.0-1032.34 | < 5.4.0-1075.81 | < 5.15.0-1032.34 | all

  • ubuntu•linux-fips

    < 4.4.0-1095.102 | all | < 4.15.0-1118.129 | < 5.4.0-1089.98

  • ubuntu•linux-gcp

    < 4.15.0-1157.174~16.04.1 | all | < 5.4.0-1118.127 | < 5.15.0-1047.55

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1157.174

  • ubuntu•linux-gcp-5.11

    all

  • ubuntu•linux-gcp-5.13

    all

  • ubuntu•linux-gcp-5.15

    < 5.15.0-1047.55~20.04.1

  • ubuntu•linux-gcp-5.19

    all

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1118.127~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-6.2

    < 6.2.0-1019.21~22.04.1

  • ubuntu•linux-gcp-fips

    < 4.15.0-2065.70 | all | < 5.4.0-1118.127+fips1

  • ubuntu•linux-gke

    all | < 5.15.0-1047.52

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.15

    all

  • ubuntu•linux-gke-5.4

    all

  • ubuntu•linux-gkeop

    < 5.4.0-1081.85 | < 5.15.0-1033.39

Showing first 50 affected entries in server-rendered view.

References (22)