libexif vulnerabilities

13 May 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 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 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

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

• CVE-2018-20030
• CVE-2020-12767