CVE-2018-1000204

kernel: Infoleak caused by incorrect handling of the SG_IO ioctl

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Severity

Low

Red Hat Product Security

4.1

CVSS 3.0

Review impact separately from score.

Published · May 18, 2018

Updated · June 28, 2026

Description

A malformed SG_IO ioctl issued for a SCSI device in the Linux kernel leads to a local kernel data leak manifesting in up to approximately 1000 memory pages copied to the userspace. The problem has limited scope as non-privileged users usually have no permissions to access SCSI device files.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 4.1
CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N

CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor