Several vulnerabilities have been discovered in the X.Org X server. An attacker who's able to connect to an X server could cause a denial of service or potentially the execution of arbitrary code. For the oldstable distribution (jessie), these problems have been fixed in version 2:1.16.4-1+deb8u2. For the stable distribution (stretch), these problems have been fixed in version 2:1.19.2-1+deb9u2. We recommend that you upgrade your xorg-server packages.
Several vulnerabilities have been discovered in the X.Org X server. An attacker who's able to connect to an X server could cause a denial of service or potentially the execution of arbitrary code.
For the oldstable distribution (jessie), these problems have been fixed in version 2:1.16.4-1+deb8u2.
For the stable distribution (stretch), these problems have been fixed in version 2:1.19.2-1+deb9u2.
We recommend that you upgrade your xorg-server packages.