A Jhead security update has been released for Ubuntu Linux 14.04 LTS and 16.04 LTS.

[USN-6113-1] Jhead vulnerability

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Ubuntu Security Notice USN-6113-1
May 30, 2023

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

- Ubuntu 16.04 LTS (Available with Ubuntu Pro)
- Ubuntu 14.04 LTS (Available with Ubuntu Pro)

Summary:

Jhead could be made to crash if it opened a specially crafted
file.

Software Description:
- jhead: Manipulate the non-image part of Exif compliant JPEG files

Details:

It was discovered that Jhead did not properly handle certain crafted images
while processing the Exif markers. An attacker could possibly use this
issue to crash Jhead, resulting in a denial of service.

Update instructions:

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

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
jhead 1:3.00-4+deb9u1ubuntu0.1~esm4

Ubuntu 14.04 LTS (Available with Ubuntu Pro):
jhead 1:2.97-1+deb8u2ubuntu0.1~esm4

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-6113-1
CVE-2018-6612