PT-2018-3378 · Qemu+3 · Qemu+3

Moguofang · Published 2018-11-08 · Updated 2019-06-06 · CVE-2018-18954

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions: QEMU versions prior to 3.1

Description: The issue is related to the pnv lpc do eccb function in the QEMU emulator, specifically in the hw/ppc/pnv lpc.c file. It involves a buffer data boundary read issue. Exploitation of this issue could allow an attacker to cause a denial of service and gain unauthorized access to PowerNV memory.

Recommendations: For QEMU versions prior to 3.1, update to version 3.1 or later to resolve the issue. As a temporary workaround, consider restricting access to the pnv lpc do eccb function to minimize the risk of exploitation.

Fix

Out of bounds Read

Memory Corruption

Weakness Enumeration

CWE-125

CWE-787

Related Identifiers

ALT-PU-2018-2870

BDU:2020-00704

CVE-2018-18954

DSA-4454-1

DSA-4454-2

OPENSUSE-SU-2019:0254-1

OPENSUSE-SU-2019_0254-1

OPENSUSE-SU-2019_1074-1

SUSE-SU-2019:0423-1

SUSE-SU-2019:0435-1

SUSE-SU-2019:0582-1

USN-3826-1

Affected Products

Alt Linux

Qemu

Suse

Ubuntu

References · 116

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16847 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2019:0435-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-00756 · Security Note
• https://osv.dev/vulnerability/DSA-4454-2 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-17963 · Security Note
• https://bdu.fstec.ru/vul/2020-00721 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-11806 · Security Note
• https://usn.ubuntu.com/3826-1 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12617 · Security Note
• https://bdu.fstec.ru/vul/2020-00700 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2019:0423-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-16847 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-00704 · Security Note
• https://cve.org/CVERecord?id=CVE-2018-18954 · Security Note
• https://security-tracker.debian.org/tracker/DSA-4454-1 · Vendor Advisory