Description
The Minikin library in Android 5.0.x before 5.0.2, 5.1.x before 5.1.1, and 6.x before 2016-04-01 does not properly consider negative size values in font data, which allows remote attackers to cause a denial of service (memory corruption and reboot loop) via a crafted font, aka internal bug 26413177.
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 | android | No fix yet | — |
References
- https://android.googlesource.com/platform/frameworks/minikin/+/f4785aa1947b8d22d5b19559ef1ca526d98e0e73
- https://android.googlesource.com/platform/frameworks/minikin/+/ca8ac8acdad662230ae37998c6c4091bb39402b6
- http://source.android.com/security/bulletin/2016-04-02.html
- https://code.google.com/p/android/issues/detail?id=192618