Type confusion could lead to a heap out-of-bounds write in V8 in Google Chrome prior to 64.0.3282.168 allowing a remote attacker to execute…

published 2019-01-09 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-17819

cvss: 8.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 9.4%; EPSS 9.4% chance of exploitation in 30 days, percentile 95%
public exploits: 0; none known

Type confusion could lead to a heap out-of-bounds write in V8 in Google Chrome prior to 64.0.3282.168 allowing a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page.

Patch / fix

fixed in 1 distros 3

Google Chrome 64.0.3282.168

ubuntu red hat opensuse

chromium-browser Ubuntu 14.04 LTS 64.0.3282.167-0ubuntu0.14.04.1
chromium-browser Ubuntu 16.04 LTS 64.0.3282.167-0ubuntu0.16.04.1
chromium-browser Ubuntu 18.04 LTS 64.0.3282.167-0ubuntu1

ubuntu advisories UBUNTU-CVE-2018-6056

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

chromium-browser RHEL 6 EXTRAS 64.0.3282.167-1.el6_9

red hat advisories RHSA-2018:0334

chromium openSUSE Tumbleweed 93.0.4577.82-1.1
chromium openSUSE Tumbleweed 113.0.5672.92-1.1
chromium Package Hub 12 SP2 64.0.3282.167-52.1

opensuse advisories openSUSE-SU-2024:10681-1 openSUSE-SU-2024:12948-1 openSUSE-SU-2018:0453-1 openSUSE-SU-2018:0454-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-6056 updated 2026-06-28 cvss 8.8

chromium-browser: incorrect derived class instantiation in v8

Red Hat Enterprise Linux Desktop Supplementary (v. 6) chromium-browser 64.0.3282.167-1.el6_9 Red Hat Enterprise Linux Server Supplementary (v. 6) chromium-browser 64.0.3282.167-1.el6_9 Red Hat Enterprise Linux Workstation Supplementary (v. 6) chromium-browser 64.0.3282.167-1.el6_9
fixed: vendor fix RHSA-2018:0334

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

9.38% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.0	8.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

Google Chrome

Classification

Weakness

CWE-704 Incorrect Type Conversion or Cast

Technology feeds

Google Chrome rss critical rss

References

access.redhat.com /errata/RHSA-2018:0334
vendor-advisory
debian.org /security/2018/dsa-4182
vendor-advisory
crbug.com /806388
chromereleases.googleblog.com /2018/02/stable-channel-update-for-desktop_13.html
securityfocus.com /bid/103003
vdb-entry

Sources

CVE List CVE-2018-6056
NVD CVE-2018-6056

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary