UBUNTU-CVE-2018-16872

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Source

https://ubuntu.com/security/notices/UBUNTU-CVE-2018-16872

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-16872.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2018-16872

Related

Published

2018-12-13T00:00:00Z

Modified

2018-12-13T00:00:00Z

Severity

5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
5.3 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator

Summary

[none]

Details

A flaw was found in qemu Media Transfer Protocol (MTP). The code opening files in usbmtpgetobject and usbmtpgetpartialobject and directories in usbmtpobjectreaddir doesn't consider that the underlying filesystem may have changed since the time lstat(2) was called in usbmtpobject_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.

References

Affected packages

Ubuntu:18.04:LTS / qemu

Package

Name: qemu
Purl: pkg:deb/ubuntu/qemu@1:2.11+dfsg-1ubuntu7.12?arch=src?distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:2.11+dfsg-1ubuntu7.12

Affected versions

1:2.*

1:2.10+dfsg-0ubuntu3

1:2.10+dfsg-0ubuntu4

1:2.10+dfsg-0ubuntu5

1:2.11+dfsg-1ubuntu1

1:2.11+dfsg-1ubuntu2

1:2.11+dfsg-1ubuntu4

1:2.11+dfsg-1ubuntu5

1:2.11+dfsg-1ubuntu6

1:2.11+dfsg-1ubuntu7

1:2.11+dfsg-1ubuntu7.1

1:2.11+dfsg-1ubuntu7.2

1:2.11+dfsg-1ubuntu7.3

1:2.11+dfsg-1ubuntu7.4

1:2.11+dfsg-1ubuntu7.5

1:2.11+dfsg-1ubuntu7.6

1:2.11+dfsg-1ubuntu7.7

1:2.11+dfsg-1ubuntu7.8

1:2.11+dfsg-1ubuntu7.9

1:2.11+dfsg-1ubuntu7.10

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "low",
    "binaries": [
        {
            "qemu-system-misc": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-guest-agent-dbgsym": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-block-extra-dbgsym": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-utils-dbgsym": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-user": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-system-arm-dbgsym": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-kvm": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-system-ppc-dbgsym": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-user-static": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-system-arm": "1:2.11+dfsg-1ubuntu7.12",
            "qemu": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-system-sparc": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-system-s390x-dbgsym": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-system-common-dbgsym": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-system-x86-dbgsym": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-system": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-guest-agent": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-utils": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-block-extra": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-system-misc-dbgsym": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-system-sparc-dbgsym": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-system-mips-dbgsym": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-system-x86": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-system-ppc": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-system-s390x": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-system-common": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-user-static-dbgsym": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-system-mips": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-user-dbgsym": "1:2.11+dfsg-1ubuntu7.12",
            "qemu-user-binfmt": "1:2.11+dfsg-1ubuntu7.12"
        }
    ]
}