Ubuntu 20.04 LTS: USN-4358-1 Moderate: libexif Denial Of Service

ubuntu

May 13, 2020

Several security issues were fixed in libexif.

Summary

Several security issues were fixed in libexif.

Software Description:

- libexif: library to parse EXIF files

Details:

It was discovered that libexif incorrectly handled certain tags.

An attacker could possibly use this issue to cause a denial of service.

(CVE-2018-20030)

It was discovered that libexif incorrectly handled certain inputs.

An attacker could possibly use this issue to cause a crash.

(CVE-2020-12767)

Topics Covered

security advisory denial of service Ubuntu crash libexif

Update Instructions

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

Ubuntu 20.04 LTS:
  libexif12                       0.6.21-6ubuntu0.1

Ubuntu 19.10:
  libexif12                       0.6.21-5.1ubuntu0.2

Ubuntu 18.04 LTS:
  libexif12                       0.6.21-4ubuntu0.2

Ubuntu 16.04 LTS:
  libexif12                       0.6.21-2ubuntu0.2

Ubuntu 14.04 ESM:
  libexif12                       0.6.21-1ubuntu1+esm2

Ubuntu 12.04 ESM:
  libexif12                       0.6.20-2ubuntu0.3

After a standard system update you need to restart your session to
effect the necessary changes.