libgd2 vulnerabilities
A security issue affects these releases of Ubuntu and its
derivatives:
* Ubuntu 19.10
* Ubuntu 18.04 LTS
* Ubuntu 16.04 LTS
Summary
Several security issues were fixed in GD Graphics Library.
Software Description
* libgd2 - Open source code library for the dynamic creation of
images
Details
It was discovered that GD Graphics Library incorrectly handled
cloning an image. An attacker could possibly use this issue to
cause GD Graphics Library to crash, resulting in a denial of
service. (CVE-2018-14553)
It was discovered that GD Graphics Library incorrectly handled
loading images from X bitmap format files. An attacker could
possibly use this issue to cause GD Graphics Library to crash,
resulting in a denial of service, or to disclose contents of the
stack that has been left there by previous code. This issue only
affected Ubuntu 18.04 LTS and Ubuntu 16.04 LTS. (CVE-2019-11038)
Update instructions
The problem can be corrected by updating your system to the
following package versions:
Ubuntu 19.10
libgd-tools - 2.2.5-5.2ubuntu0.19.10.1
libgd3 - 2.2.5-5.2ubuntu0.19.10.1
Ubuntu 18.04 LTS
libgd-tools - 2.2.5-4ubuntu0.4
libgd3 - 2.2.5-4ubuntu0.4
Ubuntu 16.04 LTS
libgd-tools - 2.1.1-4ubuntu0.16.04.12
libgd3 - 2.1.1-4ubuntu0.16.04.12
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-2018-14553
* CVE-2019-11038
--- Mystic BBS v1.12 A45 (Linux/64)
* Origin: BZ&BZ BBS (21:4/110)