Description
An integer overflow on 32-bit systems in WebAssembly in Google Chrome prior to 66.0.3359.117 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Chrome | unspecified – < 66.0.3359.117 | 66.0.3359.117 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 9 | chromium-browser | 66.0.3359.117-1~deb9u1 | DSA-4182-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | chromium-browser | 66.0.3359.139-0ubuntu0.18.04.3 | — |
| Ubuntu 16.04 LTS | chromium-browser | 66.0.3359.139-0ubuntu0.16.04.3 | — |
| Ubuntu 16.04 LTS | oxide-qt | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | chromium-browser | 66.0.3359.117-1.el6_9 | RHSA-2018:1195 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Package Hub 12 SP2 | chromium | 66.0.3359.181-55.1 | openSUSE-SU-2018:1437-1, openSUSE-SU-2018:1175-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | chromium | 93.0.4577.82-1.1 | openSUSE-SU-2024:12948-1, openSUSE-SU-2024:10681-1 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Google Chrome - Integer Overflow when Processing WebAssembly Locals EDB-44860 · dos · Jun 8, 2018 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 6
- RHSA-2018:1195 Red Hat Security Advisory: chromium-browser security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- DSA-4182-1 chromium-browser - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2018:1175-1 Security update for Chromium SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10681-1 chromedriver-93.0.4577.82-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12948-1 ungoogled-chromium-113.0.5672.92-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2018:1437-1 Security update for Chromium SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://chromereleases.googleblog.com/2018/04/stable-channel-update-for-desktop.html
- GLSA-201804-22 vendor-advisory
- 44860 exploit
- https://crbug.com/819869
- DSA-4182 vendor-advisory
- 103917 vdb-entry
- RHSA-2018:1195 vendor-advisory