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CVE-2018-18356

28
FAUCET Score

CVE-2018-18356 describes an integer overflow in Skia's path handling within Google Chrome versions prior to 71.0.3578.80, leading to a use-after-free vulnerability. This flaw allows a remote attacker to potentially exploit heap corruption by enticing a user to visit a crafted HTML page, affecting various distributions including Canonical, Debian, Google, OpenSUSE, and Red Hat. With a CVSS score of 8.8 (High), the vulnerability is network-exploitable with low attack complexity, requiring user interaction, and could result in high impacts to confidentiality, integrity, and availability. While the vulnerability has garnered some community discussion and media coverage, there is no evidence of active exploitation, nor are there publicly available exploit modules or KEV catalog listings.

Impacted Technologies

VendorProductVersion(s)CPE
< 71.0.3578.80CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.13%
Probability of exploitation in next 30 days
EPSS Percentile
86.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0313 is in the 86th percentile among its peer group of 14,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:60.5.1-1.el6_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: thunderbird-0:60.6.1-1.el6_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 SupplementaryFixed in: chromium-browser-0:71.0.3578.80-1.el6_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: firefox-0:60.5.1-1.el7_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: thunderbird-0:60.6.1-1.el7_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: thunderbird-0:60.6.1-1.el8
View patch

Vendor Advisories (1)

redhatCVE-2018-18356Important

mozilla: Use after free in Skia

Dec 4, 2018

References

lists.opensuse.org / opensuse-security-announce/2019-04/msg00043.html
access.redhat.com / errata/RHSA-2018:3803
access.redhat.com / errata/RHSA-2019:0373
access.redhat.com / errata/RHSA-2019:0374
access.redhat.com / errata/RHSA-2019:1144
chromereleases.googleblog.com / 2018/12/stable-channel-update-for-desktop.html
crbug.com / 883666
lists.debian.org / debian-lts-announce/2019/02/msg00023.html
lists.debian.org / debian-lts-announce/2019/02/msg00024.html
security.gentoo.org / glsa/201903-04
security.gentoo.org / glsa/201904-07
security.gentoo.org / glsa/201908-18
usn.ubuntu.com / 3896-1
usn.ubuntu.com / 3897-1
debian.org / security/2018/dsa-4352
debian.org / security/2019/dsa-4391
debian.org / security/2019/dsa-4392
securityfocus.com / bid/106084