A DHCP security update has been released for Ubuntu Linux 18.04 LTS and 20.04 LTS.

USN-5658-2: DHCP vulnerabilities

==========================================================================
Ubuntu Security Notice USN-5715-1
November 07, 2022

libraw vulnerabilities
==========================================================================

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

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in LibRaw.

Software Description:
- libraw: raw image decoder library

Details:

It was discovered that LibRaw incorrectly handled photo files. If a user or
automated system were tricked into processing a specially crafted photo
file, a remote attacker could cause applications linked against LibRaw to
crash, resulting in a denial of service, or possibly execute arbitrary
code.

Update instructions:

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

Ubuntu 20.04 LTS:
libraw19 0.19.5-1ubuntu1.1

Ubuntu 18.04 LTS:
libraw16 0.18.8-1ubuntu0.4

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

References:
https://ubuntu.com/security/notices/USN-5715-1
CVE-2020-15503, CVE-2020-35530, CVE-2020-35531, CVE-2020-35532,
CVE-2020-35533

Package Information:
https://launchpad.net/ubuntu/+source/libraw/0.19.5-1ubuntu1.1
https://launchpad.net/ubuntu/+source/libraw/0.18.8-1ubuntu0.4