CVE-2018-16847
First published: Fri Nov 02 2018(Updated: )
An OOB heap buffer r/w access issue was found in the NVM Express Controller emulation in QEMU. It could occur in nvme_cmb_ops routines in nvme device. A guest user/process could use this flaw to crash the QEMU process resulting in DoS or potentially run arbitrary code with privileges of the QEMU process.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/qemu | 1:5.2+dfsg-11+deb11u3 1:5.2+dfsg-11+deb11u2 1:7.2+dfsg-7+deb12u7 1:9.0.2+ds-2 1:9.1.0+ds-3 | |
| QEMU KVM | <=3.0.0 | |
| QEMU KVM | =3.1.0-rc0 | |
| QEMU KVM | =3.1.0-rc1 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =18.10 |
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Reference Links
- http://www.securityfocus.com/bid/105866
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16847
- https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg00200.html
- https://usn.ubuntu.com/3826-1/
- https://www.openwall.com/lists/oss-security/2018/11/02/1
- https://launchpad.net/bugs/cve/CVE-2018-16847
- https://git.qemu.org/?p=qemu.git;a=commit;h=87ad860c622cc8f8916b5232bd8728c08f938fce
- https://security-tracker.debian.org/tracker/CVE-2018-16847
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16847
- https://nvd.nist.gov/vuln/detail/CVE-2018-16847
- https://ubuntu.com/security/CVE-2018-16847
Frequently Asked Questions
What is CVE-2018-16847?
CVE-2018-16847 is an OOB heap buffer r/w access vulnerability in the NVM Express Controller emulation in QEMU, which could result in denial of service (DoS) or arbitrary code execution.
What is the severity of CVE-2018-16847?
The severity of CVE-2018-16847 is high with a CVSS score of 7.8.
How does CVE-2018-16847 affect QEMU?
CVE-2018-16847 affects the NVM Express Controller emulation in QEMU, allowing a guest user/process to crash QEMU or potentially execute arbitrary code with the privileges of the QEMU process.
Which software versions are affected by CVE-2018-16847?
QEMU versions up to 3.0.0, 3.1.0-rc0, and 3.1.0-rc1 are affected, as well as specific versions of QEMU on Ubuntu 14.04, 16.04, 18.04, and 18.10, and certain versions of QEMU on Debian systems.
How can I fix CVE-2018-16847?
To fix CVE-2018-16847, update QEMU to version 1:2.11+dfsg-1ubuntu7.8 on Ubuntu, 1:2.12+dfsg-3ubuntu8.1 on Ubuntu 18.04 (cosmic), or the appropriate fixed versions on other affected systems.
- agent/weakness
- agent/type
- collector/launchpad-cve
- source/Launchpad
- agent/author
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/last-modified-date
- collector/security-tracker-debian
- source/Debian
- agent/software-canonical-lookup
- collector/usn-cve
- source/Ubuntu
- agent/remedy
- agent/references
- agent/softwarecombine
- agent/description
- agent/first-publish-date
- agent/event
- agent/trending
- agent/source
- agent/tags
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup-request
- collector/nvd-index
- package-manager/debian
- vendor/qemu
- canonical/qemu kvm
- version/qemu kvm/3.0.0
- version/qemu kvm/3.1.0-rc0
- version/qemu kvm/3.1.0-rc1
- vendor/canonical
- canonical/canonical ubuntu linux
- version/canonical ubuntu linux/14.04
- version/canonical ubuntu linux/16.04
- version/canonical ubuntu linux/18.04
- version/canonical ubuntu linux/18.10