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SYNTHESIS OF THE VULNERABILITY

An attacker can use several vulnerabilities of X.Org.

Impacted products: Fedora, XOrg Bundle not comprehensive, libX11.

Severity: 2/4.

Creation date: 28/02/2017.

DESCRIPTION OF THE VULNERABILITY

Several vulnerabilities were announced in X.Org.

An attacker can bypass security features via MIT Cookie Brute
Force, in order to escalate his privileges. [severity:1/4;
CVE-2017-2624]

An attacker can force the usage of a freed memory area via
XdmToID(), in order to trigger a denial of service, and possibly
to run code. [severity:2/4]

An attacker can bypass security features via libXdmcp, in order to
escalate his privileges. [severity:1/4; CVE-2017-2625]

An attacker can bypass security features via libICE, in order to
escalate his privileges. [severity:1/4; CVE-2017-2626]

An unknown vulnerability was announced via GenerateRandomData().
[severity:1/4]

ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/X-Org-multiple-vulnerabilities-21979