PT-2018-3399 · Qemu+3 · Qemu+3

Michael Hanselmann · Published 2018-06-13 · Updated 2024-06-15 · CVE-2018-16872

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: qemu (affected versions not specified)

Description: A flaw in qemu's Media Transfer Protocol (MTP) implementation allows an attacker with write access to the host filesystem shared with a guest to navigate the host filesystem in the context of the QEMU process and read any file the QEMU process has access to. This is due to a TOCTTOU (Time-of-Check-to-Time-of-Use) problem, where the code opening files and directories does not consider that the underlying filesystem may have changed since the time lstat(2) was called. Access to the filesystem may be local or via a network share protocol such as CIFS.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Race Condition

Time Of Check To Time Of Use

Weakness Enumeration

CWE-20

CWE-362

CWE-367

Related Identifiers

ALT-PU-2019-1973

ALT-PU-2019-1990

BDU:2020-00749

CVE-2018-16872

DLA-1694-1

DSA-4454-1

DSA-4454-2

OPENSUSE-SU-2019:0254-1

OPENSUSE-SU-2019_0254-1

OPENSUSE-SU-2019_1074-1

OPENSUSE-SU-2024:11287-1

SUSE-SU-2019:0423-1

SUSE-SU-2019:0435-1

SUSE-SU-2019:0471-1

SUSE-SU-2019:0471-2

SUSE-SU-2019:0489-1

SUSE-SU-2019:0582-1

SUSE-SU-2019_0423-1

SUSE-SU-2019_0435-1

SUSE-SU-2019_0471-1

SUSE-SU-2019_0471-2

USN-3923-1

Affected Products

Alt Linux

Suse

Ubuntu

Qemu

References · 287

• https://usn.ubuntu.com/3923-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2019:0435-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-16872 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-16872 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20124 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20125 · Security Note
• https://bdu.fstec.ru/vul/2020-00704 · Security Note
• https://ubuntu.com/security/CVE-2018-20124 · Vendor Advisory
• https://security-tracker.debian.org/tracker/DSA-4454-1 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20216 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19364 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20126 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16867 · Security Note
• https://ubuntu.com/security/CVE-2018-19489 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20191 · Security Note