==========================================================================
Ubuntu Security Notice USN-6110-1
May 29, 2023

Jhead vulnerabilities
==========================================================================

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

- Ubuntu 23.04
- Ubuntu 22.10
- Ubuntu 22.04 LTS (Available with Ubuntu Pro)
- Ubuntu 20.04 LTS (Available with Ubuntu Pro)
- Ubuntu 18.04 LTS (Available with Ubuntu Pro)
- 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 Canon
images when processing them. An attacker could possibly use this issue to
crash Jhead, resulting in a denial of service. (CVE-2021-3496)

It was discovered that Jhead did not properly handle certain crafted images
when printing Canon-specific information. An attacker could possibly use this
issue to crash Jhead, resulting in a denial of service. (CVE-2021-28275)

It was discovered that Jhead did not properly handle certain crafted images
when removing unknown sections. An attacker could possibly use this issue to
crash Jhead, resulting in a denial of service. (CVE-2021-28275)

Kyle Brown discovered that Jhead did not properly handle certain crafted
images when editing their comments. An attacker could possibly use this to
crash Jhead, resulting in a denial of service. (LP: #2020068)

Update instructions:

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

Ubuntu 23.04:
   jhead                           1:3.06.0.1-6ubuntu0.23.04.1

Ubuntu 22.10:
   jhead                           1:3.06.0.1-2ubuntu0.22.10.2

Ubuntu 22.04 LTS (Available with Ubuntu Pro):
   jhead                           1:3.06.0.1-2ubuntu0.22.04.1+esm1

Ubuntu 20.04 LTS (Available with Ubuntu Pro):
   jhead                           1:3.04-1ubuntu0.2+esm1

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
   jhead                           1:3.00-8~ubuntu0.2+esm1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
   jhead                           1:3.00-4+deb9u1ubuntu0.1~esm3

Ubuntu 14.04 LTS (Available with Ubuntu Pro):
   jhead                           1:2.97-1+deb8u2ubuntu0.1~esm3

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

References:
   https://ubuntu.com/security/notices/USN-6110-1
   CVE-2021-28275, CVE-2021-28277, CVE-2021-3496, https://launchpad.net/bugs/2020068

Package Information:
   https://launchpad.net/ubuntu/+source/jhead/1:3.06.0.1-6ubuntu0.23.04.1
   https://launchpad.net/ubuntu/+source/jhead/1:3.06.0.1-2ubuntu0.22.10.2