Home/CVE/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
CVE

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

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.

MEDIUM · CVSS 5.5 EPSS 0.00119
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-125Out-of-bounds Read
CWE-787Out-of-bounds Write
▤

Affected Products & Versions

3
qemu< 3.1
canonical ubuntu linuxall versions
opensuse leapall versions
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumPotentially Suspicious Usage Of Qemu
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD15 Nov 2018 · 08:29 PM
CVSS VectorCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

5
suse-csafopenSUSE-SU-2019:0254-1
suse-csafSUSE-SU-2019:0582-1
suse-csafSUSE-SU-2019:0435-1
suse-csafSUSE-SU-2019:0423-1
usnUSN-3826-1
🔗

References & Sources

7
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00042.htmlMailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2018/11/06/6Mailing ListPatchThird Party Advisory
http://www.securityfocus.com/bid/105920Third Party AdvisoryVDB Entry
https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg00446.htmlMailing ListPatchThird Party Advisory
https://seclists.org/bugtraq/2019/May/76
https://usn.ubuntu.com/3826-1/Third Party Advisory
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