Description
The implementation of the Page.downloadBehavior backend unconditionally marked downloaded files as safe, regardless of file type in Google Chrome prior to 66.0.3359.117 allowed an attacker who convinced a user to install a malicious extension to potentially perform a sandbox escape via a crafted HTML page and user interaction.
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 | 68.0.3440.75-1~deb9u1 | DSA-4256-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | chromium-browser | 68.0.3440.75-0ubuntu0.18.04.1 | — |
| Ubuntu 16.04 LTS | chromium-browser | 68.0.3440.75-0ubuntu0.16.04.1 | — |
| Ubuntu 16.04 LTS | oxide-qt | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | chromium-browser | 68.0.3440.75-1.el6_10 | RHSA-2018:2282 |
Advisories 2
- RHSA-2018:2282 Red Hat Security Advisory: chromium-browser security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- DSA-4256-1 chromium-browser - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://chromereleases.googleblog.com/2018/04/stable-channel-update-for-desktop.html
- https://crbug.com/805445
- RHSA-2018:2282 vendor-advisory
- GLSA-201808-01 vendor-advisory
- DSA-4256 vendor-advisory
- 104887 vdb-entry