USN-4488-2: X.Org X Server vulnerabilities
Publication date
9 September 2020
Overview
Several security issues were fixed in X.Org X Server.
Releases
Packages
- xorg-server - X.Org X11 server
Details
USN-4488-1 fixed several vulnerabilities in X.Org. This update provides
the corresponding update and also the update from USN-4490-1 for Ubuntu 14.04 ESM.
Original advisory details:
Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled the
input extension protocol. A local attacker could possibly use this issue to
escalate privileges. (CVE-2020-14346)
Jan-Niklas Sohn discovered that the X.Org X Server incorrectly initialized
memory. A local attacker could possibly use this issue to obtain sensitive
information. (CVE-2020-14347)
Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled the
XkbSelectEvents function. A local attacker could possibly use this issue to
escalate privileges. (CVE-2020-14361)
Jan-Niklas Sohn discovered that the X.Org X Server incorrectly...
USN-4488-1 fixed several vulnerabilities in X.Org. This update provides
the corresponding update and also the update from USN-4490-1 for Ubuntu 14.04 ESM.
Original advisory details:
Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled the
input extension protocol. A local attacker could possibly use this issue to
escalate privileges. (CVE-2020-14346)
Jan-Niklas Sohn discovered that the X.Org X Server incorrectly initialized
memory. A local attacker could possibly use this issue to obtain sensitive
information. (CVE-2020-14347)
Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled the
XkbSelectEvents function. A local attacker could possibly use this issue to
escalate privileges. (CVE-2020-14361)
Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled the
XRecordRegisterClients function. A local attacker could possibly use this
issue to escalate privileges. (CVE-2020-14362)
Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled the
XkbSetNames function. A local attacker could possibly use this issue to
escalate privileges. (CVE-2020-14345)
Update instructions
After a standard system update you need to reboot your computer to make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 14.04 trusty | xserver-xorg-core – 2:1.15.1-0ubuntu2.11+esm2 | ||
Reduce your security exposure
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