libx11 vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 ESM
Summary
Several security issues were fixed in libx11.
Software Description
- libx11 - X11 client-side library
Details
USN-3758-1 fixed several vulnerabilities in libx11. This update provides the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
Tobias Stoeckmann discovered that libx11 incorrectly handled certain images. An attacker could possibly use this issue to access sensitive information (CVE-2016-7942)
Tobias Stoeckmann discovered that libx11 incorrectly handled certain inputs. An attacker could possibly use this issue to access sensitive information. (CVE-2016-7943)
It was discovered that libx11 incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service. (CVE-2018-14598, CVE-2018-14599, CVE-2018-14600)
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 12.04 ESM
- libx11-6 - 2:1.4.99.1-0ubuntu2.4
- libx11-dev - 2:1.4.99.1-0ubuntu2.4
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to reboot your computer to make all the necessary changes.
References
from Ubuntu Security Notices https://ift.tt/2Nx3OGt
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