USN-4358-1: libexif vulnerabilities

Releases

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

Packages

• 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)

Update instructions

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

Ubuntu 20.04

• libexif12 - 0.6.21-6ubuntu0.1

Ubuntu 19.10

• libexif12 - 0.6.21-5.1ubuntu0.2

Ubuntu 18.04

• libexif12 - 0.6.21-4ubuntu0.2

Ubuntu 16.04

• libexif12 - 0.6.21-2ubuntu0.2

Ubuntu 14.04

• libexif12 - 0.6.21-1ubuntu1+esm2
  Available with Ubuntu Pro

Ubuntu 12.04

• libexif12 - 0.6.20-2ubuntu0.3

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

References

• CVE-2018-20030
• CVE-2020-12767