CVE-2018-18954

QEMU: ppc64: Out-of-bounds r/w stack access in pnv_lpc_do_eccb

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Severity

Low

Red Hat Product Security

4.5

CVSS 3.0

Review impact separately from score.

Published · October 22, 2018

Updated · November 22, 2025

Description

The pnv_lpc_do_eccb function in hw/ppc/pnv_lpc.c in Qemu before 3.1 allows out-of-bounds write or read access to PowerNV memory.

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 · 4.5
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

CWE-121 · Stack-based Buffer Overflow