This update for xorg-x11-libs fixes several issues.
These security issues were fixed:
CVE-2017-16612: Heap overflows due to an integer overflow while parsing images and a signedness issue while parsing comments (bsc#1065386).
CVE-2017-13720: Improper check for end of string in PatterMatch caused invalid reads (bsc#1054285)
CVE-2017-13722: Malformed PCF file could have caused DoS or leak information (bsc#1049692)
Prevent the X server from accessing arbitrary files as root. It is not possible to leak information, but special files can be touched allowing for causing side effects (bsc#1050459)