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USN-4697-1: Pillow vulnerabilities

18 January 2021

Pillow could be made to crash or run programs as your login if it opened a specially crafted file.

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Releases

Packages

  • pillow - Python Imaging Library

Details

It was discovered that Pillow incorrectly handled certain PCX image files.
If a user or automated system were tricked into opening a specially-crafted
PCX file, a remote attacker could possibly cause Pillow to crash,
resulting in a denial of service. (CVE-2020-35653)

It was discovered that Pillow incorrectly handled certain Tiff image files.
If a user or automated system were tricked into opening a specially-crafted
Tiff file, a remote attacker could cause Pillow to crash, resulting in a
denial of service, or possibly execute arbitrary code. This issue only
affected Ubuntu 20.04 LTS and Ubuntu 20.10. (CVE-2020-35654)

It was discovered that Pillow incorrectly handled certain SGI image files.
If a user or automated system were tricked into opening a specially-crafted
SGI file, a remote attacker could possibly cause Pillow to crash,
resulting in a denial of service. This issue only affected Ubuntu 18.04
LTS, Ubuntu 20.04 LTS, and Ubuntu 20.10. (CVE-2020-35655)

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.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 20.10
Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04

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

Related notices

  • USN-4697-2: python-pil-doc, python-imaging-doc, python3-imaging, python-imaging-compat, python3-pil.imagetk, python-imaging-sane, python-sane, python3-pil, python3-sane, python-pil, python3-imaging-sane, pillow, python-imaging-tk, python-imaging, python3-imaging-tk, python-pil.imagetk