PT-2018-3380 · Qemu+3 · Qemu+3

Published 2018-11-01 · Updated 2019-06-06 · CVE-2018-18849

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 version 3.0.0

Description: The issue is related to the lsi do msgin function in the QEMU hardware emulator, specifically in the hw/scsi/lsi53c895a.c file. It involves a buffer data boundary read issue. Exploitation of this issue could allow an attacker to cause a denial of service due to an invalid value of the msg len variable.

Recommendations: For QEMU version 3.0.0, as a temporary workaround, consider restricting access to the lsi do msgin function in the hw/scsi/lsi53c895a.c file until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

ALT-PU-2018-2870

BDU:2020-00717

CVE-2018-18849

DLA-1781-1

DSA-4454-1

DSA-4454-2

OPENSUSE-SU-2018_4004-1

OPENSUSE-SU-2018_4111-1

OPENSUSE-SU-2018_4147-1

SUSE-SU-2018:3912-1

SUSE-SU-2018:3927-1

SUSE-SU-2018:3973-1

SUSE-SU-2018:3973-2

SUSE-SU-2018:3975-1

SUSE-SU-2018:3987-1

SUSE-SU-2018:4070-1

SUSE-SU-2018:4129-1

SUSE-SU-2018:4185-1

SUSE-SU-2018:4237-1

SUSE-SU-2018_4070-1

SUSE-SU-2019:0003-1

SUSE-SU-2019:0020-1

SUSE-SU-2019:0825-1

SUSE-SU-2019:0827-1

SUSE-SU-2019:13921-1

SUSE-SU-2019:14011-1

SUSE-SU-2019_0020-1

USN-3826-1

Affected Products

Alt Linux

Qemu

Suse

Ubuntu

References · 207

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16847 · Security Note
• https://bdu.fstec.ru/vul/2020-00756 · Security Note
• https://bdu.fstec.ru/vul/2020-00736 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-17963 · Security Note
• https://bdu.fstec.ru/vul/2019-01305 · Security Note
• https://usn.ubuntu.com/3826-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2018:4129-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2018:3987-1 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/LQIBTGNRDQEXGAAYHE4JIWFAYFNHZ6QP · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-00704 · Security Note
• https://ubuntu.com/security/CVE-2018-16847 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2019:0020-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2019-01306 · Security Note
• https://security-tracker.debian.org/tracker/DSA-4454-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2018:3973-1 · Vendor Advisory