CVE-2018-18954

Name: CVE-2018-18954
Creator: NVD / NIST
Published: 2018-11-15T20:29:00.41+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.52%

Last modified Jun 17, 2026

CVE-2018-18954 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.52% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

0.52%

39.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Qemu	Qemu	< 3.1
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	18.10
Opensuse	Leap	42.3

References

http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00042.htmlMailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2018/11/06/6Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/105920Third Party Advisory, VDB Entry
https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg00446.htmlMailing List, Patch, Third Party Advisory
https://seclists.org/bugtraq/2019/May/76
https://usn.ubuntu.com/3826-1/Third Party Advisory
https://www.debian.org/security/2019/dsa-4454
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00042.htmlMailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2018/11/06/6Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/105920Third Party Advisory, VDB Entry
https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg00446.htmlMailing List, Patch, Third Party Advisory
https://seclists.org/bugtraq/2019/May/76
https://usn.ubuntu.com/3826-1/Third Party Advisory
https://www.debian.org/security/2019/dsa-4454

Timeline

Published: Nov 15, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-18954?

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.

How severe is CVE-2018-18954?

Severity scoring for CVE-2018-18954 is pending analysis. The EPSS model estimates a 0.52% probability of exploitation in the next 30 days.

How do I fix CVE-2018-18954?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-18954?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST