Executive Summary

Informations
Name CVE-2018-16872 First vendor Publication 2018-12-13
Vendor Cve Last vendor Modification 2023-05-16

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Overall CVSS Score 5.3
Base Score 5.3 Environmental Score 5.3
impact SubScore 3.6 Temporal Score 5.3
Exploitabality Sub Score 1.6
 
Attack Vector Network Attack Complexity High
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact None Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:S/C:P/I:N/A:N)
Cvss Base Score 3.5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 6.8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

A flaw was found in qemu Media Transfer Protocol (MTP). The code opening files in usb_mtp_get_object and usb_mtp_get_partial_object and directories in usb_mtp_object_readdir doesn't consider that the underlying filesystem may have changed since the time lstat(2) was called in usb_mtp_object_alloc, a classical TOCTTOU problem. An attacker with write access to the host filesystem shared with a guest can use this property to navigate the host filesystem in the context of the QEMU process and read any file the QEMU process has access to. Access to the filesystem may be local or via a network share protocol such as CIFS.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16872

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 184
Os 4
Os 2
Os 2
Os 1

Sources (Detail)

Source Url
BID http://www.securityfocus.com/bid/106212
BUGTRAQ https://seclists.org/bugtraq/2019/May/76
CONFIRM https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16872
DEBIAN https://www.debian.org/security/2019/dsa-4454
MISC https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
MLIST https://lists.debian.org/debian-lts-announce/2019/02/msg00041.html
SUSE http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00042.html
UBUNTU https://usn.ubuntu.com/3923-1/

Alert History

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Date Informations
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2019-05-31 21:19:45
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2019-01-10 21:18:56
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2018-12-15 17:19:02
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2018-12-14 05:18:20
  • First insertion