Red Hat Security Advisory 2019-2079-01 - X.Org is an open-source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon. Issues addressed include null pointer and out of bounds write vulnerabilities.
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Ubuntu Security Notice 3786-2 - USN-3786-1 fixed several vulnerabilities in libxkbcommon. This update provides the corresponding update for Ubuntu 18.04 LTS. It was discovered that libxkbcommon incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service. Various other issues were also addressed.
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Gentoo Linux Security Advisory 201810-5 - Multiple vulnerabilities have been found in xkbcommon, the worst of which may lead to a Denial of Service condition. Versions less than 0.8.2 are affected.
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Ubuntu Security Notice 3786-1 - It was discovered that libxkbcommon incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service.
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