USN-4358-1: libexif vulnerabilities

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

Source: USN-4358-1: libexif vulnerabilities

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