Description
Out-of-bounds Write in the QUIC networking stack in Google Chrome prior to 63.0.3239.84 allowed a remote attacker to gain code execution via a malicious server.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | Google Chrome prior to 63.0.3239.84 unknown | Google Chrome prior to 63.0.3239.84 unknown | — |
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 | 63.0.3239.84-1~deb9u1 | DSA-4064-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | chromium-browser | 63.0.3239.84-0ubuntu1 | — |
| Ubuntu 16.04 LTS | chromium-browser | 63.0.3239.84-0ubuntu0.16.04.1 | — |
| Ubuntu 16.04 LTS | oxide-qt | No fix yet | — |
| Ubuntu 14.04 LTS | chromium-browser | 63.0.3239.84-0ubuntu0.14.04.1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | chromium-browser | 63.0.3239.84-1.el6_9 | RHSA-2017:3401 |
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 |
Advisories 5
- RHSA-2017:3401 Red Hat Security Advisory: chromium-browser security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- DSA-4064-1 chromium-browser - security update Debian Security (DSA / DLA) · Mar 9, 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
- WID-SEC-2025-2406 Google Chrome: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 26, 2025
References
- https://crbug.com/778505
- RHSA-2017:3401 vendor-advisory
- GLSA-201801-03 vendor-advisory
- https://chromereleases.googleblog.com/2017/12/stable-channel-update-for-desktop.html
- DSA-4064 vendor-advisory