USN-5227-3: Pillow vulnerability

Releases

• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM

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 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

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

Ubuntu 20.04

• python3-pil - 7.0.0-4ubuntu0.6

Ubuntu 18.04

• python3-pil - 5.1.0-1ubuntu0.8
• python-pil - 5.1.0-1ubuntu0.8

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

References

• CVE-2022-22817

Related notices

• USN-5227-1: python3-pil.imagetk, python3-pil, python-pil-doc, python-pil.imagetk, pillow, python-pil
• USN-5227-2: python3-pil.imagetk, python-imaging-sane, python-sane, python3-imaging-sane, python3-pil, python3-sane, python-pil-doc, python3-imaging-tk, python-pil.imagetk, python-imaging, python-imaging-tk, pillow, python3-imaging, python-imaging-doc, python-pil, python-imaging-compat