星球 - USN-3060-1: GD library vulnerabilities

來自:Ubuntu security notices | 2016/8/14 18:18:19

Ubuntu Security Notice USN-3060-1


10th August, 2016


libgd2 vulnerabilities


A security issue affects these releases of Ubuntu and its
derivatives:




  • Ubuntu 16.04 LTS


  • Ubuntu 14.04 LTS





Summary


The GD library could be made to crash or run programs if it processed a
specially crafted image file.





Software description





  • libgd2
    - GD Graphics Library









Details


It was discovered that the GD library incorrectly handled certain malformed
TGA images. If a user or automated system were tricked into processing a
specially crafted TGA image, an attacker could cause a denial of service.
(CVE-2016-6132, CVE-2016-6214)



It was discovered that the GD library incorrectly handled memory when using
gdImageScale(). A remote attacker could possibly use this issue to cause a
denial of service or possibly execute arbitrary code. (CVE-2016-6207)



Update instructions


The problem can be corrected by updating your system to the following
package version:




Ubuntu 16.04 LTS:




libgd3

2.1.1-4ubuntu0.16.04.3





Ubuntu 14.04 LTS:




libgd3

2.1.0-3ubuntu0.3






To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.


In general, a standard system update will make all the necessary changes.





References




CVE-2016-6132,

CVE-2016-6207,

CVE-2016-6214