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Ubuntu 14.04 ESM: USN-4487-2 Moderate: Libx11 Privilege Escalation

ubuntu
Calendar Grey September 8, 2020
Dist Ubuntu Esm H88
Several vulnerabilities in libx11 have been addressed for Ubuntu 14.04 ESM and 12.04 ESM. Make sure your system has the latest updates applied.
Several security issues were fixed in libx11.

Summary

Several security issues were fixed in libx11.

Software Description:

- libx11: None

Details:

USN-4487-1 fixed several vulnerabilities in libx11. This update provides

the corresponding update for Ubuntu 12.04 ESM and 14.04 ESM.

Original advisory details:

Todd Carson discovered that libx11 incorrectly handled certain memory

operations. A local attacker could possibly use this issue to escalate

privileges. (CVE-2020-14344)

Jayden Rivers discovered that libx11 incorrectly handled locales. A local

attacker could possibly use this issue to escalate privileges.

(CVE-2020-14363)

Topics%20covered

Topics Covered

security advisory privilege escalation bug fix Ubuntu libx11

Update Instructions

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

Ubuntu 14.04 ESM:
  libx11-6                        2:1.6.2-1ubuntu2.1+esm1

Ubuntu 12.04 ESM:
  libx11-6                        2:1.4.99.1-0ubuntu2.5

After a standard system update you need to reboot your computer to make all
the necessary changes.

References

https://ubuntu.com/security/notices/USN-4487-2

https://ubuntu.com/security/notices/USN-4487-1

CVE-2020-14344, CVE-2020-14363

September 08, 2020

Topics%20covered

Topics Covered

security advisory privilege escalation bug fix Ubuntu libx11

Package Information

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