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TI-2018-12961 Aliases CVE-2018-18342GHSA-3r84-3353-c3qj

Out-of-bounds write in Google Chrome

Priority MEDIUM 43CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.

Summary

Execution of user supplied Javascript during object deserialization can update object length leading to an out of bounds write in V8 in Google Chrome prior to 71.0.3578.80 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page.

Why it matters now

EPSS 0.02653 85th percentileScored 2026-11-07
Fix Fixed Chrome (Google): 71.0.3578.80Red Hat: 1 advisory

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
GoogleChromebefore 71.0.3578.8071.0.3578.80Patch availableCNA
  • Chrome VendorGoogle Affected before 71.0.3578.80 Fixed in 71.0.3578.80 Patch available CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*before 71.0.3578.80VulnerableGoogle
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
  • cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* Versions before 71.0.3578.80 Vulnerable ·Google
  • cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian

Remediation

  • Fix · CNA Chrome (Google) Fixed in 71.0.3578.80

Red Hat 1 advisory

  • RHSA-2018:3803 Released 2018-12-10 · Red Hat rating Important
    chromium-browser security update
    • Red Hat Enterprise Linux Desktop Supplementary (v. 6) chromium-browser-71.0.3578.80-1.el6_10
    • Red Hat Enterprise Linux Server Supplementary (v. 6) chromium-browser-71.0.3578.80-1.el6_10
    • Red Hat Enterprise Linux Workstation Supplementary (v. 6) chromium-browser-71.0.3578.80-1.el6_10

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Google Chrome — RHSA-2018:3803

    26 records Highest priority Priority CRITICAL 1 CRITICAL, 14 MEDIUM, 11 LOW

    Other records, highest priority first

    • TI-2018-12471 Out-of-bounds write in Google ChromePriority CRITICAL 97
    • TI-2018-12954 Out-of-bounds write in Google ChromePriority MEDIUM 45
    • TI-2018-12975 Integer overflow in Google ChromePriority MEDIUM 44
    Show all 26 records → Advisory →
  • Advisory ·

    Google Chrome — DSA-4352

    26 records Highest priority Priority CRITICAL 1 CRITICAL, 14 MEDIUM, 11 LOW

    Other records, highest priority first

    • TI-2018-12471 Out-of-bounds write in Google ChromePriority CRITICAL 97
    • TI-2018-12954 Out-of-bounds write in Google ChromePriority MEDIUM 45
    • TI-2018-12975 Integer overflow in Google ChromePriority MEDIUM 44
    Show all 26 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux Desktop Supplementary (v. 6)Fixed RHSA-2018:3803
Red Hat Enterprise Linux Server Supplementary (v. 6)Fixed RHSA-2018:3803
Red Hat Enterprise Linux Workstation Supplementary (v. 6)Fixed RHSA-2018:3803

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-18342
  2. 2026-10-03 Alias added: GHSA-3r84-3353-c3qj

References

Advisory 3

Other 2

  • TI-2025-09686 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-07390 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
  • TI-2024-04898 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
  • TI-2024-04600 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
  • TI-2024-04346 Use after free in Google Chrome KEVCVSS 3.1CRITICAL 9.6
  • TI-2023-05824 Integer overflow in Google Chrome KEVCVSS 3.1CRITICAL 9.6
See all 7586 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences