Improper deserialization in WebGL in Google Chrome on Mac prior to 68.0.3440.75 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Weakness
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Chrome | * | 68.0.3440.75 (excluding) | |
| Red Hat Enterprise Linux 6 Supplementary | RedHat | chromium-browser-0:68.0.3440.75-1.el6_10 | * |
| Chromium-browser | Ubuntu | bionic | * |
| Chromium-browser | Ubuntu | cosmic | * |
| Chromium-browser | Ubuntu | devel | * |
| Chromium-browser | Ubuntu | trusty | * |
| Chromium-browser | Ubuntu | upstream | * |
| Chromium-browser | Ubuntu | xenial | * |
| Oxide-qt | Ubuntu | esm-infra/xenial | * |
| Oxide-qt | Ubuntu | trusty | * |
| Oxide-qt | Ubuntu | xenial | * |
Potential Mitigations
- Make fields transient to protect them from deserialization.
- An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.
Related Attack Patterns
References
- http://www.securityfocus.com/bid/104887
- https://access.redhat.com/errata/RHSA-2018:2282
- https://chromereleases.googleblog.com/2018/07/stable-channel-update-for-desktop.html
- https://crbug.com/804123
- https://security.gentoo.org/glsa/201808-01
- https://www.debian.org/security/2018/dsa-4256
- http://www.securityfocus.com/bid/104887
- https://access.redhat.com/errata/RHSA-2018:2282
- https://chromereleases.googleblog.com/2018/07/stable-channel-update-for-desktop.html
- https://crbug.com/804123
- https://security.gentoo.org/glsa/201808-01
- https://www.debian.org/security/2018/dsa-4256