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Fencer Intel
high 8.8

CVE-2018-6118 json

A double-eviction in the Incognito mode cache that lead to a user-after-free in cache in Google Chrome prior to 66.0.3359.139 allowed a rem…

published 7y ago modified 4mo ago also EUVD-2018-17881

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

A double-eviction in the Incognito mode cache that lead to a user-after-free in cache in Google Chrome prior to 66.0.3359.139 allowed a remote attacker who had compromised the renderer process to execute arbitrary code via a crafted HTML page.

Patch / fix

  • Google Chrome 66.0.3359.139
  • chromium-browser Ubuntu 16.04 LTS 66.0.3359.139-0ubuntu0.16.04.3
  • chromium-browser Ubuntu 18.04 LTS 66.0.3359.139-0ubuntu0.18.04.3

ubuntu advisories UBUNTU-CVE-2018-6118

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 66.0.3359.139-1.el6_9

red hat advisories RHSA-2018:1321

  • chromium openSUSE Tumbleweed 93.0.4577.82-1.1
  • chromium openSUSE Tumbleweed 113.0.5672.92-1.1
  • chromium Package Hub 12 SP2 66.0.3359.181-55.1

opensuse advisories openSUSE-SU-2024:10681-1openSUSE-SU-2024:12948-1openSUSE-SU-2018:1175-1openSUSE-SU-2018:1437-1

  • chromium Arch Linux 66.0.3359.139-1

arch linux advisories AVG-680

Is CVE-2018-6118 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2018-6118 updated cvss 9.6

chromium-browser: Use after free in Media Cache

  • Red Hat Enterprise Linux Desktop Supplementary (v. 6) chromium-browser 66.0.3359.139-1.el6_9 Red Hat Enterprise Linux Server Supplementary (v. 6) chromium-browser 66.0.3359.139-1.el6_9 Red Hat Enterprise Linux Workstation Supplementary (v. 6) chromium-browser 66.0.3359.139-1.el6_9
    fixed: vendor fix RHSA-2018:1321

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

1.91% chance of exploitation in the next 30 days, higher than 79% 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
Technology feeds

References

Sources

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.