What’s Vulnerable › Vulnerabilities

CVE-2018-18954

• Severity: medium (CVSS 5.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-11-15 · updated 2026-06-17
• Weakness: CWE-125

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.

Affected products

• Canonical Ubuntu Linux: 18.04, 18.10
• openSUSE Leap: 42.3
• QEMU: before 3.1 — fixed in 3.1

How to fix

Upgrade to a fixed version: QEMU 3.1. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00042.html
• http://www.openwall.com/lists/oss-security/2018/11/06/6
• http://www.securityfocus.com/bid/105920
• https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg00446.html
• https://seclists.org/bugtraq/2019/May/76
• https://usn.ubuntu.com/3826-1/
• https://www.debian.org/security/2019/dsa-4454
• http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00042.html
• http://www.openwall.com/lists/oss-security/2018/11/06/6
• http://www.securityfocus.com/bid/105920
• https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg00446.html
• https://seclists.org/bugtraq/2019/May/76

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