CVE-2018-16847

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-11-02 · updated 2026-06-17
Weakness: CWE-787

Description

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.

Affected products

Canonical Ubuntu Linux: 14.04, 16.04, 18.04, 18.10
QEMU: through 3.0.0; 3.1.0-rc0, 3.1.0-rc1

References

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
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

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