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==========================================================================
Ubuntu Security Notice USN-4720-2
February 03, 2021

apport vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.04 ESM

Summary:

Several security issues were fixed in Apport.

Software Description:
- apport: automatically generate crash reports for debugging

Details:

USN-4720-1 fixed several vulnerabilities in Apport. This update provides
the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

 Itai Greenhut discovered that Apport incorrectly parsed certain files in
 the /proc filesystem. A local attacker could use this issue to escalate
 privileges and run arbitrary code. (CVE-2021-25682, CVE-2021-25683)

 Itai Greenhut discovered that Apport incorrectly handled opening certain
 special files. A local attacker could possibly use this issue to cause
 Apport to hang, resulting in a denial of service. (CVE-2021-25684)

Update instructions:

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

Ubuntu 14.04 ESM:
  apport                          2.14.1-0ubuntu3.29+esm6
  python-apport                   2.14.1-0ubuntu3.29+esm6
  python3-apport                  2.14.1-0ubuntu3.29+esm6

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

References:
  https://usn.ubuntu.com/4720-2
  https://usn.ubuntu.com/4720-1
  CVE-2021-25682, CVE-2021-25683, CVE-2021-25684

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