X.Org Server Security Vulnerability Patched in Ubuntu 17.04, 16.04 and 14.04 LTS

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  • Post Updated: April 3, 2024

X.Org Server is not as secure as we’d like, that’s why more and more GNU/Linux distributions are trying to migrate to the next-generation Wayland display server, whose design offers us an extra layer of security.

Canonical recently published a new security advisory informing users of the Ubuntu 17.04 (Zesty Zapus), Ubuntu 16.04 LTS (Xenial Xerus), and Ubuntu 14.04 LTS (Trusty Tahr) operating systems about a recent security vulnerability affecting the xorg-server, xorg-server-hwe-16.04, and xorg-server-lts-xenial packages.

Any of the official derivatives are also affected by the issue, including Kubuntu, Lubuntu, Xubuntu, Ubuntu MATE, Ubuntu Kylin, Ubuntu Studio, or Ubuntu Budgie, that could allow a remote or local attacker to crash the X.Org Server or run arbitrary code because the X11 server failed to correctly handle some lengths.

“It was discovered that the X.Org X server incorrectly handled certain lengths. An attacker able to connect to an X server, either lo… (read more)

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