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Ubuntu 16.04 LTS USN-3786-1 Moderate: libxkbcommon Denial of Service

ubuntu
Calendar Grey October 8, 2018
Dist Ubuntu Esm H88
Ubuntu Security Notice USN-3790-1 tackles several libgcrypt vulnerabilities. Upgrade promptly to mitigate potential exploitation threats.
Several security issues were fixed in libxkbcommon.

Summary

Several security issues were fixed in libxkbcommon.

Software Description:

- libxkbcommon: library interface to the XKB compiler - development

files

Details:

It was discovered that libxkbcommon incorrectly handled certain files.

An attacker could possibly use this issue to cause a denial of service.

(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)

Topics%20covered

Topics Covered

security advisory moderate denial of service software update ubuntu USN libxkbcommon

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 16.04 LTS:
  libxkbcommon-x11-0              0.5.0-1ubuntu2.1
  libxkbcommon0                   0.5.0-1ubuntu2.1

Ubuntu 14.04 LTS:
  libxkbcommon-x11-0              0.4.1-0ubuntu1.1
  libxkbcommon0                   0.4.1-0ubuntu1.1

In general, a standard system update will make all the necessary
changes.

References

  https://ubuntu.com/security/notices/USN-3786-1

  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

October 08, 2018

Topics%20covered

Topics Covered

security advisory moderate denial of service software update ubuntu USN libxkbcommon

Package Information

  https://launchpad.net/ubuntu/+source/libxkbcommon/0.5.0-1ubuntu2.1
  https://launchpad.net/ubuntu/+source/libxkbcommon/0.4.1-0ubuntu1.1

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