USN-5227-3: Pillow vulnerability

Publication date

24 October 2022

Overview

An incomplete fix was discovered in Pillow.


Packages

  • pillow - Python Imaging Library

Details

USN-5227-1 fixed vulnerabilities in Pillow. It was discovered that the fix
for CVE-2022-22817 was incomplete. This update fixes the problem.

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...

USN-5227-1 fixed vulnerabilities in Pillow. It was discovered that the fix
for CVE-2022-22817 was incomplete. This update fixes the problem.

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)


Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
20.04 focal python3-pil –  7.0.0-4ubuntu0.6
18.04 bionic python3-pil –  5.1.0-1ubuntu0.8
python-pil –  5.1.0-1ubuntu0.8

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.


Have additional questions?

Talk to a member of the team ›