USN-3389-2: GD vulnerability
Publication date
14 August 2017
Overview
The system could be made to expose sensitive information.
Releases
Packages
- libgd2 - GD Graphics Library
Details
USN-3389-1 fixed a vulnerability in GD Graphics Library.
This update provides the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
A vulnerability was discovered in GD Graphics Library (aka libgd),
as used in PHP that does not zero colorMap arrays before use.
A specially crafted GIF image could use the uninitialized tables to
read bytes from the top of the stack.
USN-3389-1 fixed a vulnerability in GD Graphics Library.
This update provides the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
A vulnerability was discovered in GD Graphics Library (aka libgd),
as used in PHP that does not zero colorMap arrays before use.
A specially crafted GIF image could use the uninitialized tables to
read bytes from the top of the stack.
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 12.04 precise | libgd-tools – 2.0.36~rc1~dfsg-6ubuntu2.5 | ||
Reduce your security exposure
Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.