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==========================================================================
Ubuntu Security Notice USN-4396-1
June 16, 2020

libexif vulnerabilities
==========================================================================

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

- Ubuntu 20.04 LTS
- Ubuntu 19.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM

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 inputs.
An attacker could possibly use this issue to expose sensitive information.
(CVE-2020-0093, CVE-2020-0182)

It was discovered that libexif incorrectly handled certain inputs.
An attacker could possibly use this issue to cause a remote denial of service.
(CVE-2020-0198)

It was discovered that libexif incorrectly handled certain inputs.
An attacker could possibly use this issue to expose sensitive information or
cause a crash. (CVE-2020-13112)

It was discovered that libexif incorrectly handled certain inputs.
An attacker could possibly use this issue to cause a crash.
(CVE-2020-13113)

It was discovered libexif incorrectly handled certain inputs.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2020-13114)

Update instructions:

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

Ubuntu 20.04 LTS:
  libexif12                       0.6.21-6ubuntu0.3

Ubuntu 19.10:
  libexif12                       0.6.21-5.1ubuntu0.5

Ubuntu 18.04 LTS:
  libexif12                       0.6.21-4ubuntu0.5

Ubuntu 16.04 LTS:
  libexif12                       0.6.21-2ubuntu0.5

Ubuntu 14.04 ESM:
  libexif12                       0.6.21-1ubuntu1+esm5

Ubuntu 12.04 ESM:
  libexif12                       0.6.20-2ubuntu0.6

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

References:
  https://usn.ubuntu.com/4396-1
  CVE-2020-0093, CVE-2020-0182, CVE-2020-0198, CVE-2020-13112,
  CVE-2020-13113, CVE-2020-13114

Package Information:
  https://launchpad.net/ubuntu/+source/libexif/0.6.21-6ubuntu0.3
  https://launchpad.net/ubuntu/+source/libexif/0.6.21-5.1ubuntu0.5
  https://launchpad.net/ubuntu/+source/libexif/0.6.21-4ubuntu0.5
  https://launchpad.net/ubuntu/+source/libexif/0.6.21-2ubuntu0.5

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