Skip to content
Fencer Intel
high 8.8

CVE-2018-6156 json

Incorect derivation of a packet length in WebRTC in Google Chrome prior to 68.0.3440.75 allowed a remote attacker to potentially exploit he…

published 7y ago modified 4mo ago also EUVD-2018-17919

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 58%
public exploits
0
none known

Summary

Incorect derivation of a packet length in WebRTC in Google Chrome prior to 68.0.3440.75 allowed a remote attacker to potentially exploit heap corruption via a crafted video file.

Patch / fix

  • Google Chrome 68.0.3440.75
  • firefox Ubuntu 16.04 LTS 70.0+build2-0ubuntu0.16.04.1
  • firefox Ubuntu 18.04 LTS 70.0+build2-0ubuntu0.18.04.1
  • chromium-browser Ubuntu 16.04 LTS 68.0.3440.75-0ubuntu0.16.04.1
  • chromium-browser Ubuntu 18.04 LTS 68.0.3440.75-0ubuntu0.18.04.1

ubuntu advisories UBUNTU-CVE-2018-6156

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 68.0.3440.75-1.el6_10

red hat advisories RHSA-2018:2282

  • firefox-esr openSUSE Tumbleweed 128.5.1-1.1
  • MozillaFirefox openSUSE Tumbleweed 92.0-1.2
  • chromium openSUSE Tumbleweed 93.0.4577.82-1.1
  • chromium openSUSE Tumbleweed 113.0.5672.92-1.1

opensuse advisories openSUSE-SU-2024:14572-1openSUSE-SU-2024:10600-1openSUSE-SU-2024:10681-1openSUSE-SU-2024:12948-1

  • firefox Alpine 3.23, Alpine 3.22, Alpine 3.21 +9 more 70.0-r0
  • librewolf Alpine 3.24, Alpine 3.23, Alpine 3.22 +1 more 70.0-r0

alpine advisories ALPINE-CVE-2018-6156

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • firefox Arch Linux 70.0-1

arch linux advisories AVG-1055

Is CVE-2018-6156 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.

Check with Fencer

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-2018-6156 updated cvss 8.8

chromium-browser: Heap buffer overflow in WebRTC

  • Red Hat Enterprise Linux Desktop Supplementary (v. 6) chromium-browser 68.0.3440.75-1.el6_10 Red Hat Enterprise Linux Server Supplementary (v. 6) chromium-browser 68.0.3440.75-1.el6_10 Red Hat Enterprise Linux Workstation Supplementary (v. 6) chromium-browser 68.0.3440.75-1.el6_10
    fixed: vendor fix RHSA-2018:2282

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

0.86% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/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.