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CVE-2023-31085

Public on 2023-04-24
Modified on 2024-01-12
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.

Severity
Medium
See what this means
CVSS v3 Base Score
5.5
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Kernel-5.10 Extra kernel 2023-10-31 00:17 ALAS2KERNEL-5.10-2023-042
Amazon Linux 2 - Kernel-5.4 Extra kernel 2023-10-31 00:16 ALAS2KERNEL-5.4-2023-055

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD CVSSv3 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Red Hat: CVE-2023-31085 Mitre: CVE-2023-31085 FAQs regarding Amazon Linux ALAS/CVE Severity