The Array.prototype.concat implementation in builtins.cc in Google V8, as used in Google…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.
Summary
The Array.prototype.concat implementation in builtins.cc in Google V8, as used in Google Chrome before 49.0.2623.108, does not properly consider element data types, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via crafted JavaScript code.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 13
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* | 14.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:* | 15.10 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* | 16.04 | Vulnerable | Canonical |
| cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* | before 49.0.2623.108 | Vulnerable | |
| cpe:2.3:a:suse:package_hub:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | SUSE |
| cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:* | 42.1 | Vulnerable | openSUSE |
| cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* | 13.1 | Vulnerable | openSUSE |
| cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Red Hat |
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* Versions 14.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:* Versions 15.10 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* Versions 16.04 Vulnerable ·Canonical
- cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* Versions before 49.0.2623.108 Vulnerable ·Google
- cpe:2.3:a:suse:package_hub:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·SUSE
- cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:* Versions 42.1 Vulnerable ·openSUSE
- cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* Versions 13.1 Vulnerable ·openSUSE
- cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
Remediation
Red Hat 1 advisory
- RHSA-2016:0525 Released 2016-03-30 · Red Hat rating Importantchromium-browser security update
- Red Hat Enterprise Linux Desktop Supplementary (v. 6) chromium-browser-49.0.2623.108-1.el6
- Red Hat Enterprise Linux Server Supplementary (v. 6) chromium-browser-49.0.2623.108-1.el6
- Red Hat Enterprise Linux Workstation Supplementary (v. 6) chromium-browser-49.0.2623.108-1.el6
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux Desktop Supplementary (v. 6) | Fixed | RHSA-2016:0525 |
| Red Hat Enterprise Linux Server Supplementary (v. 6) | Fixed | RHSA-2016:0525 |
| Red Hat Enterprise Linux Workstation Supplementary (v. 6) | Fixed | RHSA-2016:0525 |
Timeline
- 2022-06-08 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2016-1646
- 2026-10-03 Alias added: GHSA-93cg-vfx4-pxr4
References
More Google Chrome vulnerabilities
- 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
Sources
- CVE-2016-1646 · CVE Program
- CVE-2016-1646 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-93cg-vfx4-pxr4 · GitHub Advisory Database · CC BY 4.0
- CVE-2016-1646 · Red Hat security data · CC BY 4.0
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