Buffer overflow in Qemu
CVE-2018-16847
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (43.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Qemu — versions 3.1.0
- [Unknown] Qemu:
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- www.openwall.com/lists/oss-security/2018/11/02/1 (mailing-list, Patch, Mailing List, Third Party Advisory)
- lists.gnu.org/archive/html/qemu-devel/2018-11/msg00200.html (Patch, Mailing List, Third Party Advisory)
- usn.ubuntu.com/3826-1/ (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/105866 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2018-16847?
- CVE-2018-16847 is a high-severity vulnerability in Qemu, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2018-11-02.
- How severe is CVE-2018-16847?
- High severity. CVSS v3 base score is 7.8 out of 10.