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CVE-2018-18344

Inappropriate allowance of the setDownloadBehavior devtools protocol feature in Extensions in...

6.5 MediumFix available

Inappropriate allowance of the setDownloadBehavior devtools protocol feature in Extensions in Google Chrome prior to 71.0.3578.80 allowed a remote attacker with control of an installed extension to access files on the local file system via a crafted Chrome Extension.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
None

Exploit likelihood

1.50%Up 0.7 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 6.5

Inappropriate allowance of the setDownloadBehavior devtools protocol feature in Extensions in Google Chrome prior to 71.0.3578.80 allowed a remote attacker with control of an installed extension to access files on the local file system via a crafted Chrome Extension.

Record
CVE-2018-18344
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:P/I:N/A:N
Weakness
CWE-269
Updated
2026-11-02
CVE List No score

Inappropriate allowance of the setDownloadBehavior devtools protocol feature in Extensions in Google Chrome prior to 71.0.3578.80 allowed a remote attacker with control of an installed extension to access files on the local file system via a crafted Chrome Extension.

Record
CVE-2018-18344
Updated
2026-11-02
EUVDEUVD-2018-10075 No score

Inappropriate allowance of the setDownloadBehavior devtools protocol feature in Extensions in Google Chrome prior to 71.0.3578.80 allowed a remote attacker with control of an installed extension to access files on the local file system via a crafted Chrome Extension.

Record
EUVD-2018-10075
Updated
2026-11-03
GitHub AdvisoriesGHSA-65mf-6mg7-rqw8 6.5

Inappropriate allowance of the setDownloadBehavior devtools protocol feature in Extensions in...

Inappropriate allowance of the setDownloadBehavior devtools protocol feature in Extensions in Google Chrome prior to 71.0.3578.80 allowed a remote attacker with control of an installed extension to access files on the local file system via a crafted Chrome Extension.

Record
GHSA-65mf-6mg7-rqw8
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Weakness
CWE-269
Updated
2026-11-02
OSV 6.5

Inappropriate allowance of the setDownloadBehavior devtools protocol feature in Extensions in Google Chrome prior to 71.0.3578.80 allowed a remote attacker with control of an installed extension to access files on the local file system via a crafted Chrome Extension.

Record
CVE-2018-18344
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVDEBIAN-CVE-2018-18344 6.5

Inappropriate allowance of the setDownloadBehavior devtools protocol feature in Extensions in Google Chrome prior to 71.0.3578.80 allowed a remote attacker with control of an installed extension to access files on the local file system via a crafted Chrome Extension.

Record
DEBIAN-CVE-2018-18344
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Updated
2026-11-02
Show 5 moreShow less
OSVRHSA-2018:3803 8.8

Red Hat Security Advisory: chromium-browser security update

Record
RHSA-2018:3803
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2018-18344 6.5

Inappropriate allowance of the setDownloadBehavior devtools protocol feature in Extensions in Google Chrome prior to 71.0.3578.80 allowed a remote attacker with control of an installed extension to access files on the local file system via a crafted Chrome Extension.

Record
UBUNTU-CVE-2018-18344
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVopenSUSE-SU-2018:4143-1 No score

Security update for Chromium

This update to Chromium 71.0.3578.98 fixes the following issues:

Security issues fixed (boo#1118529):

  • CVE-2018-17480: Out of bounds write in V8
  • CVE-2018-17481: Use after frees in PDFium
  • CVE-2018-18335: Heap buffer overflow in Skia
  • CVE-2018-18336: Use after free in PDFium
  • CVE-2018-18337: Use after free in Blink
  • CVE-2018-18338: Heap buffer overflow in Canvas
  • CVE-2018-18339: Use after free in WebAudio
  • CVE-2018-18340: Use after free in MediaRecorder
  • CVE-2018-18341: Heap buffer overflow in Blink
  • CVE-2018-18342: Out of bounds write in V8
  • CVE-2018-18343: Use after free in Skia
  • CVE-2018-18344: Inappropriate implementation in Extensions
  • Multiple issues in SQLite via WebSQL
  • CVE-2018-18345: Inappropriate implementation in Site Isolation
  • CVE-2018-18346: Incorrect security UI in Blink
  • CVE-2018-18347: Inappropriate implementation in Navigation
  • CVE-2018-18348: Inappropriate implementation in Omnibox
  • CVE-2018-18349: Insufficient policy enforcement in Blink
  • CVE-2018-18350: Insufficient policy enforcement in Blink
  • CVE-2018-18351: Insufficient policy enforcement in Navigation
  • CVE-2018-18352: Inappropriate implementation in Media
  • CVE-2018-18353: Inappropriate implementation in Network Authentication
  • CVE-2018-18354: Insufficient data validation in Shell Integration
  • CVE-2018-18355: Insufficient policy enforcement in URL Formatter
  • CVE-2018-18356: Use after free in Skia
  • CVE-2018-18357: Insufficient policy enforcement in URL Formatter
  • CVE-2018-18358: Insufficient policy enforcement in Proxy
  • CVE-2018-18359: Out of bounds read in V8
  • Inappropriate implementation in PDFium
  • Use after free in Extensions
  • Inappropriate implementation in Navigation
  • Insufficient policy enforcement in Navigation
  • Insufficient policy enforcement in URL Formatter
  • Various fixes from internal audits, fuzzing and other initiatives
  • CVE-2018-17481: Use after free in PDFium (boo#1119364)

The following changes are included:

  • advertisements posing as error messages are now blocked
  • Automatic playing of content at page load mostly disabled
  • New JavaScript API for relative time display
Record
openSUSE-SU-2018:4143-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:10681-1 No score

chromedriver-93.0.4577.82-1.1 on GA media

These are all security issues fixed in the chromedriver-93.0.4577.82-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10681-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:12948-1 No score

ungoogled-chromium-113.0.5672.92-1.1 on GA media

These are all security issues fixed in the ungoogled-chromium-113.0.5672.92-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:12948-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
chromium
Debian:12
 before 71.0.3578.80-1
71.0.3578.80-1
chromium
Debian:13
 before 71.0.3578.80-1
71.0.3578.80-1
chromium
Debian:14
 before 71.0.3578.80-1
71.0.3578.80-1
chromium-browser
Debian:9
From an advisory covering 33 CVEs
 before 71.0.3578.80-1~deb9u1, plus listed versions
59.0.3071.104-159.0.3071.86-160.0.3112.72-160.0.3112.78-160.0.3112.78-1~deb9u1
Show 45 moreShow less
61.0.3163.100-161.0.3163.100-1~deb9u161.0.3163.100-262.0.3202.75-162.0.3202.75-1~deb9u162.0.3202.89-162.0.3202.89-1~deb9u163.0.3239.30-163.0.3239.40-163.0.3239.84-163.0.3239.84-1~deb9u164.0.3282.119-164.0.3282.119-1~deb9u164.0.3282.119-265.0.3325.146-165.0.3325.146-265.0.3325.146-365.0.3325.146-465.0.3325.73-165.0.3325.74-166.0.3359.117-166.0.3359.117-1~deb9u166.0.3359.139-166.0.3359.181-166.0.3359.22-166.0.3359.22-266.0.3359.22-366.0.3359.26-166.0.3359.26-267.0.3396.48-167.0.3396.56-167.0.3396.57-167.0.3396.62-167.0.3396.62-267.0.3396.79-167.0.3396.79-267.0.3396.87-167.0.3396.87-1~deb9u168.0.3440.17-168.0.3440.25-168.0.3440.33-168.0.3440.42-168.0.3440.7-168.0.3440.75-168.0.3440.75-1~deb9u1
71.0.3578.80-1~deb9u1
chromium-browser
Red Hat:rhel_extras:6
From an advisory covering 27 CVEs
 before 0:71.0.3578.80-1.el6_10
0:71.0.3578.80-1.el6_10
chromium-browser-debuginfo
Red Hat:rhel_extras:6
From an advisory covering 27 CVEs
 before 0:71.0.3578.80-1.el6_10
0:71.0.3578.80-1.el6_10
chromium-browser
Ubuntu:16.04:LTS
 before 71.0.3578.80-0ubuntu0.16.04.1, plus listed versions
45.0.2454.101-0ubuntu1.120147.0.2526.73-0ubuntu1.121847.0.2526.106-0ubuntu1.122148.0.2564.82-0ubuntu1.122248.0.2564.116-0ubuntu1.1229
Show 38 moreShow less
49.0.2623.87-0ubuntu1.123249.0.2623.108-0ubuntu1.123350.0.2661.102-0ubuntu0.16.04.1.123751.0.2704.79-0ubuntu0.16.04.1.124252.0.2743.116-0ubuntu0.16.04.1.125053.0.2785.143-0ubuntu0.16.04.1.125453.0.2785.143-0ubuntu0.16.04.1.125755.0.2883.87-0ubuntu0.16.04.126356.0.2924.76-0ubuntu0.16.04.126857.0.2987.98-0ubuntu0.16.04.127658.0.3029.81-0ubuntu0.16.04.127758.0.3029.96-0ubuntu0.16.04.127958.0.3029.110-0ubuntu0.16.04.128159.0.3071.109-0ubuntu0.16.04.128959.0.3071.109-0ubuntu0.16.04.129160.0.3112.78-0ubuntu0.16.04.129360.0.3112.113-0ubuntu0.16.04.129861.0.3163.79-0ubuntu0.16.04.130061.0.3163.100-0ubuntu0.16.04.130662.0.3202.62-0ubuntu0.16.04.130862.0.3202.75-0ubuntu0.16.04.131362.0.3202.89-0ubuntu0.16.04.131562.0.3202.94-0ubuntu0.16.04.131763.0.3239.84-0ubuntu0.16.04.163.0.3239.132-0ubuntu0.16.04.164.0.3282.119-0ubuntu0.16.04.164.0.3282.140-0ubuntu0.16.04.164.0.3282.167-0ubuntu0.16.04.165.0.3325.181-0ubuntu0.16.04.166.0.3359.139-0ubuntu0.16.04.366.0.3359.181-0ubuntu0.16.04.167.0.3396.99-0ubuntu0.16.04.268.0.3440.75-0ubuntu0.16.04.168.0.3440.106-0ubuntu0.16.04.169.0.3497.81-0ubuntu0.16.04.170.0.3538.67-0ubuntu0.16.04.170.0.3538.77-0ubuntu0.16.04.170.0.3538.110-0ubuntu0.16.04.1
71.0.3578.80-0ubuntu0.16.04.1
chromium-browser
Ubuntu:18.04:LTS
 before 71.0.3578.80-0ubuntu0.18.04.1, plus listed versions
61.0.3163.100-0ubuntu1.137862.0.3202.62-0ubuntu0.17.10.138062.0.3202.89-0ubuntu1.138662.0.3202.94-0ubuntu1.138863.0.3239.84-0ubuntu1
Show 15 moreShow less
63.0.3239.108-0ubuntu164.0.3282.119-0ubuntu164.0.3282.140-0ubuntu164.0.3282.167-0ubuntu165.0.3325.146-0ubuntu165.0.3325.181-0ubuntu166.0.3359.139-0ubuntu0.18.04.366.0.3359.181-0ubuntu0.18.04.167.0.3396.99-0ubuntu0.18.04.168.0.3440.75-0ubuntu0.18.04.168.0.3440.106-0ubuntu0.18.04.169.0.3497.81-0ubuntu0.18.04.170.0.3538.67-0ubuntu0.18.04.170.0.3538.77-0ubuntu0.18.04.170.0.3538.110-0ubuntu0.18.04.1
71.0.3578.80-0ubuntu0.18.04.1
chromium
SUSE:Package Hub 12 SP2
From an advisory covering 27 CVEs
 before 71.0.3578.98-80.1
71.0.3578.98-80.1
chromium
openSUSE:Tumbleweed
From an advisory covering 1081 CVEs
 before 93.0.4577.82-1.1
93.0.4577.82-1.1
chromium
openSUSE:Tumbleweed
From an advisory covering 2310 CVEs
 before 113.0.5672.92-1.1
113.0.5672.92-1.1

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-18344 is a medium vulnerability (CVSS 6.5) in Google Chrome, published December 7, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.50%, the 74th percentile. Fixed in chromium 71.0.3578.80-1.

References

Show 194 moreShow less
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Left out here: 19 versions and 2,236 references. The JSON record has them.

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