CVE-2018-14656

kernel: Arbitrary Kernel Read into dmesg via Missing Address Check in segfault Handler

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Severity

Important

Red Hat Product Security

4.7

CVSS 3.0

Review impact separately from score.

Published · September 13, 2018

Updated · June 30, 2026

Description

A missing address check in the callers of the show_opcodes() in the Linux kernel allows an attacker to dump the kernel memory at an arbitrary kernel address into the dmesg log.

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 · 4.7
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

CWE-20 · Improper Input Validation