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Ubuntu Security Notice USN-4199-2
July 15, 2020

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

- Ubuntu 14.04 ESM

Summary:

Several security issues were fixed in libvpx.

Software Description:
- libvpx: VP8 and VP9 video codec

Details:

USN-4199-1 fixed several vulnerabilities in libvpx. This update provides
the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

 It was discovered that libvpx did not properly handle certain malformed
 WebM media files. If an application using libvpx opened a specially crafted
 WebM file, a remote attacker could cause a denial of service, or possibly
 execute arbitrary code.

Update instructions:

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

Ubuntu 14.04 ESM:
  libvpx1                         1.3.0-2ubuntu0.1~esm1

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

References:
  https://usn.ubuntu.com/4199-2
  https://usn.ubuntu.com/4199-1
  CVE-2017-13194, CVE-2019-9232, CVE-2019-9433