CVE-2018-16847: canonical ubuntu_linux Out-of-bounds Write
Vulnerability summary
CVE-2018-16847 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in canonical ubuntu_linux. EPSS estimates a 0.54% chance of exploitation in the next 30 days, higher than 45.6% of scored vulnerabilities.
Not severe (CVSS 7, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 3 · Related 3Timeline
- 02-11-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
7 scores · 4 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.0HighCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HDiffers
EPSS trend
Probability
0.54%
Chance of exploitation in the next 30 days
Percentile
46%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.54% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Suse2 products
- qemu&distro=SUSE Linux Enterprise Module for Basesystem 15< 2.11.2-9.17.1
- qemu&distro=SUSE Linux Enterprise Module for Server Applications 15< 2.11.2-9.17.1
[unknown]1 product
- qemu:n/a
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 18.04 | 18.10
Debian1 product
- qemu< 1:3.1+dfsg-1
Qemu1 product
- qemu≤ 3.0.0 | 3.1.0:rc0 | 3.1.0:rc1
Ubuntu1 product
- qemu< 1:2.11+dfsg-1ubuntu7.8
6 vendors · 7 products
References
13 links- bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16847X Refsource CONFIRMIssue TrackingPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2018/11/02/1Mailing ListX Refsource MLISTPatchThird Party AdvisoryREPORT
- lists.gnu.org/archive/html/qemu-devel/2018-11/msg00200.htmlX Refsource MISCMailing ListPatchThird Party Advisory
