Description
WebKit in Apple Safari before 6.2.8, 7.x before 7.1.8, and 8.x before 8.0.8, as used in iOS before 8.4.1 and other products, does not properly perform taint checking for CANVAS elements, which allows remote attackers to bypass the Same Origin Policy and obtain sensitive image data by leveraging a redirect to a data:image resource.
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.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | webkitgtk +2 | No fix yet | — |
References
- 1033274 vdb-entry
- https://support.apple.com/kb/HT205030
- APPLE-SA-2015-08-13-3 vendor-advisory
- 76341 vdb-entry
- APPLE-SA-2015-08-13-1 vendor-advisory
- https://support.apple.com/kb/HT205033