Attacker Value
Unknown
CVE-2018-16872
CVE-2018-16872
(Last updated October 06, 2023) ▾
MITRE ATT&CK
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Description
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.
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CVSS V3 Severity and Metrics
Data provided by the National Vulnerability Database (NVD)
Base Score:
5.3 Medium
Impact Score:
3.6
Exploitability Score:
1.6
Attack Vector (AV):
Network
Attack Complexity (AC):
High
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
None
Availability (A):
None
General Information
Vendors
- canonical,
- debian,
- fedoraproject,
- opensuse,
- qemu
Products
- debian linux 8.0,
- debian linux 9.0,
- fedora 29,
- fedora 30,
- leap 42.3,
- qemu,
- ubuntu linux 14.04,
- ubuntu linux 16.04,
- ubuntu linux 18.04,
- ubuntu linux 18.10
References
Advisory
