pillow vulnerabilities

USN-5227-1 fixed several vulnerabilities in Pillow. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory details:

It was discovered that Pillow incorrectly handled certain image files. If a
user or automated system were tricked into opening a specially-crafted
file, a remote attacker could cause Pillow to hang, resulting in a denial
of service. (CVE-2021-23437)

It was discovered that Pillow incorrectly handled certain image files. If a
user or automated system were tricked into opening a specially-crafted
file, a remote attacker could cause Pillow to crash, resulting in a denial
of service. This issue ony affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and
Ubuntu 21.04. (CVE-2021-34552)

It was discovered that Pillow incorrectly handled certain image files. If a
user or automated system were tricked into opening a specially-crafted
file, a remote attacker could cause Pillow to crash, resulting in a denial
of service, or possibly execute arbitrary code. (CVE-2022-22815)

It was discovered that Pillow incorrectly handled certain image files. If a
user or automated system were tricked into opening a specially-crafted
file, a remote attacker could cause Pillow to crash, resulting in a denial
of service. (CVE-2022-22816)

It was discovered that Pillow incorrectly handled certain image files. If a
user or automated system were tricked into opening a specially-crafted
file, a remote attacker could cause Pillow to crash, resulting in a denial
of service, or possibly execute arbitrary code. (CVE-2022-22817)