UBUNTU-CVE-2018-12617

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Source

https://ubuntu.com/security/CVE-2018-12617

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-12617.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2018-12617

Upstream

CVE-2018-12617

Downstream

USN-3826-1

Related

USN-3826-1

Published

2018-06-21T00:00:00Z

Modified

2025-09-08T16:44:55Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

qmpguestfileread in qga/commands-posix.c and qga/commands-win32.c in qemu-ga (aka QEMU Guest Agent) in QEMU 2.12.50 has an integer overflow causing a gmalloc0() call to trigger a segmentation fault when trying to allocate a large memory chunk. The vulnerability can be exploited by sending a crafted QMP command (including guest-file-read with a large count value) to the agent via the listening socket.

References

Affected packages

Ubuntu:14.04:LTS / qemu

Package

Name: qemu
Purl: pkg:deb/ubuntu/qemu@2.0.0+dfsg-2ubuntu1.44?arch=source&distro=trusty

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.0.0+dfsg-2ubuntu1.44

Affected versions

1.*

1.5.0+dfsg-3ubuntu5

1.5.0+dfsg-3ubuntu6

1.6.0+dfsg-2ubuntu1

1.6.0+dfsg-2ubuntu2

1.6.0+dfsg-2ubuntu3

1.6.0+dfsg-2ubuntu4

1.7.0+dfsg-2ubuntu1

1.7.0+dfsg-2ubuntu2

1.7.0+dfsg-2ubuntu3

1.7.0+dfsg-2ubuntu4

1.7.0+dfsg-2ubuntu5

1.7.0+dfsg-2ubuntu7

1.7.0+dfsg-2ubuntu8

1.7.0+dfsg-2ubuntu9

1.7.0+dfsg-3ubuntu1~ppa1

1.7.0+dfsg-3ubuntu1

1.7.0+dfsg-3ubuntu2

1.7.0+dfsg-3ubuntu3

1.7.0+dfsg-3ubuntu4

1.7.0+dfsg-3ubuntu5

1.7.0+dfsg-3ubuntu6

1.7.0+dfsg-3ubuntu7

2.*

2.0.0~rc1+dfsg-0ubuntu1

2.0.0~rc1+dfsg-0ubuntu2

2.0.0~rc1+dfsg-0ubuntu3

2.0.0~rc1+dfsg-0ubuntu3.1

2.0.0+dfsg-2ubuntu1

2.0.0+dfsg-2ubuntu1.1

2.0.0+dfsg-2ubuntu1.2

2.0.0+dfsg-2ubuntu1.3

2.0.0+dfsg-2ubuntu1.5

2.0.0+dfsg-2ubuntu1.6

2.0.0+dfsg-2ubuntu1.7

2.0.0+dfsg-2ubuntu1.8

2.0.0+dfsg-2ubuntu1.9

2.0.0+dfsg-2ubuntu1.10

2.0.0+dfsg-2ubuntu1.11

2.0.0+dfsg-2ubuntu1.13

2.0.0+dfsg-2ubuntu1.14

2.0.0+dfsg-2ubuntu1.15

2.0.0+dfsg-2ubuntu1.16

2.0.0+dfsg-2ubuntu1.17

2.0.0+dfsg-2ubuntu1.18

2.0.0+dfsg-2ubuntu1.19

2.0.0+dfsg-2ubuntu1.20

2.0.0+dfsg-2ubuntu1.21

2.0.0+dfsg-2ubuntu1.22

2.0.0+dfsg-2ubuntu1.24

2.0.0+dfsg-2ubuntu1.25

2.0.0+dfsg-2ubuntu1.26

2.0.0+dfsg-2ubuntu1.27

2.0.0+dfsg-2ubuntu1.28

2.0.0+dfsg-2ubuntu1.29

2.0.0+dfsg-2ubuntu1.30

2.0.0+dfsg-2ubuntu1.31

2.0.0+dfsg-2ubuntu1.32

2.0.0+dfsg-2ubuntu1.33

2.0.0+dfsg-2ubuntu1.34

2.0.0+dfsg-2ubuntu1.35

2.0.0+dfsg-2ubuntu1.36

2.0.0+dfsg-2ubuntu1.38

2.0.0+dfsg-2ubuntu1.39

2.0.0+dfsg-2ubuntu1.40

2.0.0+dfsg-2ubuntu1.41

2.0.0+dfsg-2ubuntu1.42

2.0.0+dfsg-2ubuntu1.43

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "2.0.0+dfsg-2ubuntu1.44",
            "binary_name": "qemu"
        },
        {
            "binary_version": "2.0.0+dfsg-2ubuntu1.44",
            "binary_name": "qemu-common"
        },
        {
            "binary_version": "2.0.0+dfsg-2ubuntu1.44",
            "binary_name": "qemu-guest-agent"
        },
        {
            "binary_version": "2.0.0+dfsg-2ubuntu1.44",
            "binary_name": "qemu-keymaps"
        },
        {
            "binary_version": "2.0.0+dfsg-2ubuntu1.44",
            "binary_name": "qemu-kvm"
        },
        {
            "binary_version": "2.0.0+dfsg-2ubuntu1.44",
            "binary_name": "qemu-system"
        },
        {
            "binary_version": "2.0.0+dfsg-2ubuntu1.44",
            "binary_name": "qemu-system-aarch64"
        },
        {
            "binary_version": "2.0.0+dfsg-2ubuntu1.44",
            "binary_name": "qemu-system-arm"
        },
        {
            "binary_version": "2.0.0+dfsg-2ubuntu1.44",
            "binary_name": "qemu-system-common"
        },
        {
            "binary_version": "2.0.0+dfsg-2ubuntu1.44",
            "binary_name": "qemu-system-mips"
        },
        {
            "binary_version": "2.0.0+dfsg-2ubuntu1.44",
            "binary_name": "qemu-system-misc"
        },
        {
            "binary_version": "2.0.0+dfsg-2ubuntu1.44",
            "binary_name": "qemu-system-ppc"
        },
        {
            "binary_version": "2.0.0+dfsg-2ubuntu1.44",
            "binary_name": "qemu-system-sparc"
        },
        {
            "binary_version": "2.0.0+dfsg-2ubuntu1.44",
            "binary_name": "qemu-system-x86"
        },
        {
            "binary_version": "2.0.0+dfsg-2ubuntu1.44",
            "binary_name": "qemu-user"
        },
        {
            "binary_version": "2.0.0+dfsg-2ubuntu1.44",
            "binary_name": "qemu-user-static"
        },
        {
            "binary_version": "2.0.0+dfsg-2ubuntu1.44",
            "binary_name": "qemu-utils"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:16.04:LTS / qemu

Package

Name: qemu
Purl: pkg:deb/ubuntu/qemu@1:2.5+dfsg-5ubuntu10.33?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:2.5+dfsg-5ubuntu10.33

Affected versions

1:2.*

1:2.3+dfsg-5ubuntu9

1:2.3+dfsg-5ubuntu10

1:2.4+dfsg-4ubuntu1

1:2.4+dfsg-4ubuntu2

1:2.4+dfsg-4ubuntu3

1:2.4+dfsg-5ubuntu3

1:2.5+dfsg-1ubuntu2

1:2.5+dfsg-1ubuntu3

1:2.5+dfsg-1ubuntu4

1:2.5+dfsg-1ubuntu5

1:2.5+dfsg-5ubuntu1

1:2.5+dfsg-5ubuntu2

1:2.5+dfsg-5ubuntu4

1:2.5+dfsg-5ubuntu6

1:2.5+dfsg-5ubuntu7

1:2.5+dfsg-5ubuntu10

1:2.5+dfsg-5ubuntu10.1

1:2.5+dfsg-5ubuntu10.2

1:2.5+dfsg-5ubuntu10.3

1:2.5+dfsg-5ubuntu10.4

1:2.5+dfsg-5ubuntu10.5

1:2.5+dfsg-5ubuntu10.6

1:2.5+dfsg-5ubuntu10.7

1:2.5+dfsg-5ubuntu10.8

1:2.5+dfsg-5ubuntu10.9

1:2.5+dfsg-5ubuntu10.10

1:2.5+dfsg-5ubuntu10.11

1:2.5+dfsg-5ubuntu10.13

1:2.5+dfsg-5ubuntu10.14

1:2.5+dfsg-5ubuntu10.15

1:2.5+dfsg-5ubuntu10.16

1:2.5+dfsg-5ubuntu10.20

1:2.5+dfsg-5ubuntu10.21

1:2.5+dfsg-5ubuntu10.22

1:2.5+dfsg-5ubuntu10.24

1:2.5+dfsg-5ubuntu10.25

1:2.5+dfsg-5ubuntu10.26

1:2.5+dfsg-5ubuntu10.28

1:2.5+dfsg-5ubuntu10.29

1:2.5+dfsg-5ubuntu10.30

1:2.5+dfsg-5ubuntu10.31

1:2.5+dfsg-5ubuntu10.32

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1:2.5+dfsg-5ubuntu10.33",
            "binary_name": "qemu"
        },
        {
            "binary_version": "1:2.5+dfsg-5ubuntu10.33",
            "binary_name": "qemu-block-extra"
        },
        {
            "binary_version": "1:2.5+dfsg-5ubuntu10.33",
            "binary_name": "qemu-guest-agent"
        },
        {
            "binary_version": "1:2.5+dfsg-5ubuntu10.33",
            "binary_name": "qemu-kvm"
        },
        {
            "binary_version": "1:2.5+dfsg-5ubuntu10.33",
            "binary_name": "qemu-system"
        },
        {
            "binary_version": "1:2.5+dfsg-5ubuntu10.33",
            "binary_name": "qemu-system-aarch64"
        },
        {
            "binary_version": "1:2.5+dfsg-5ubuntu10.33",
            "binary_name": "qemu-system-arm"
        },
        {
            "binary_version": "1:2.5+dfsg-5ubuntu10.33",
            "binary_name": "qemu-system-common"
        },
        {
            "binary_version": "1:2.5+dfsg-5ubuntu10.33",
            "binary_name": "qemu-system-mips"
        },
        {
            "binary_version": "1:2.5+dfsg-5ubuntu10.33",
            "binary_name": "qemu-system-misc"
        },
        {
            "binary_version": "1:2.5+dfsg-5ubuntu10.33",
            "binary_name": "qemu-system-ppc"
        },
        {
            "binary_version": "1:2.5+dfsg-5ubuntu10.33",
            "binary_name": "qemu-system-s390x"
        },
        {
            "binary_version": "1:2.5+dfsg-5ubuntu10.33",
            "binary_name": "qemu-system-sparc"
        },
        {
            "binary_version": "1:2.5+dfsg-5ubuntu10.33",
            "binary_name": "qemu-system-x86"
        },
        {
            "binary_version": "1:2.5+dfsg-5ubuntu10.33",
            "binary_name": "qemu-user"
        },
        {
            "binary_version": "1:2.5+dfsg-5ubuntu10.33",
            "binary_name": "qemu-user-binfmt"
        },
        {
            "binary_version": "1:2.5+dfsg-5ubuntu10.33",
            "binary_name": "qemu-user-static"
        },
        {
            "binary_version": "1:2.5+dfsg-5ubuntu10.33",
            "binary_name": "qemu-utils"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:18.04:LTS / qemu

Package

Name: qemu
Purl: pkg:deb/ubuntu/qemu@1:2.11+dfsg-1ubuntu7.8?arch=source&distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:2.11+dfsg-1ubuntu7.8

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

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.8",
            "binary_name": "qemu"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.8",
            "binary_name": "qemu-block-extra"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.8",
            "binary_name": "qemu-guest-agent"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.8",
            "binary_name": "qemu-kvm"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.8",
            "binary_name": "qemu-system"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.8",
            "binary_name": "qemu-system-arm"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.8",
            "binary_name": "qemu-system-common"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.8",
            "binary_name": "qemu-system-mips"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.8",
            "binary_name": "qemu-system-misc"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.8",
            "binary_name": "qemu-system-ppc"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.8",
            "binary_name": "qemu-system-s390x"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.8",
            "binary_name": "qemu-system-sparc"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.8",
            "binary_name": "qemu-system-x86"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.8",
            "binary_name": "qemu-user"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.8",
            "binary_name": "qemu-user-binfmt"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.8",
            "binary_name": "qemu-user-static"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.8",
            "binary_name": "qemu-utils"
        }
    ],
    "availability": "No subscription required"
}