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CVE-2018-15862

Status Candidate

Overview

Unchecked NULL pointer usage in LookupModMask in xkbcomp/expr.c in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file with invalid virtual modifiers.

Related Files

Red Hat Security Advisory 2019-2079-01
Posted Aug 6, 2019
Authored by Red Hat | Site access.redhat.com

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.

tags | advisory, vulnerability
systems | linux, redhat
advisories | CVE-2018-14598, CVE-2018-14599, CVE-2018-14600, CVE-2018-15853, CVE-2018-15854, CVE-2018-15855, CVE-2018-15856, CVE-2018-15857, CVE-2018-15859, CVE-2018-15861, CVE-2018-15862, CVE-2018-15863, CVE-2018-15864
MD5 | 2cde9ea20fa27ec2e9de810cae10cbe0
Ubuntu Security Notice USN-3786-2
Posted Nov 6, 2018
Authored by Ubuntu | Site security.ubuntu.com

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.

tags | advisory, denial of service, vulnerability
systems | linux, ubuntu
advisories | CVE-2018-15853, CVE-2018-15857, CVE-2018-15862
MD5 | f69ed867096c658c6b1c088943632808
Gentoo Linux Security Advisory 201810-05
Posted Oct 31, 2018
Authored by Gentoo | Site security.gentoo.org

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.

tags | advisory, denial of service, vulnerability
systems | linux, gentoo
advisories | CVE-2018-15853, CVE-2018-15854, CVE-2018-15855, CVE-2018-15856, CVE-2018-15857, CVE-2018-15858, CVE-2018-15859, CVE-2018-15861, CVE-2018-15862, CVE-2018-15863, CVE-2018-15864
MD5 | 96e05c61cbebc9ead20bbafcc7cdce99
Ubuntu Security Notice USN-3786-1
Posted Oct 8, 2018
Authored by Ubuntu | Site security.ubuntu.com

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.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2018-15853, CVE-2018-15857, CVE-2018-15858, CVE-2018-15862, CVE-2018-15863
MD5 | 849247c774047ab71628c7430e6037d1
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