=========================================================================Ubuntu Security Notice USN-4071-1
July 24, 2019

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

- Ubuntu 19.04
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in Patch.

Software Description:
- patch: Apply a diff file to an original

Details:

It was discovered that Patch incorrectly handled certain files.
An attacker could possibly use this issue to access sensitive information.
(CVE-2019-13636)

It was discovered that Patch incorrectly handled certain files.
An attacker could possibly use this issue to execute arbitrary code.
(CVE-2019-13638)

Update instructions:

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

Ubuntu 19.04:
  patch                           2.7.6-3ubuntu0.1

Ubuntu 18.04 LTS:
  patch                           2.7.6-2ubuntu1.1

Ubuntu 16.04 LTS:
  patch                           2.7.5-1ubuntu0.16.04.2

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

References:
  https://ubuntu.com/security/notices/USN-4071-1
  CVE-2019-13636, CVE-2019-13638

Package Information:
  https://launchpad.net/ubuntu/+source/patch/2.7.6-3ubuntu0.1
  https://launchpad.net/ubuntu/+source/patch/2.7.6-2ubuntu1.1
  https://launchpad.net/ubuntu/+source/patch/2.7.5-1ubuntu0.16.04.2