USN-4697-1: Pillow vulnerabilities

Releases

• Ubuntu 20.10
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

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)

Update instructions

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

Ubuntu 20.10

• python3-pil - 7.2.0-1ubuntu0.1

Ubuntu 20.04

• python3-pil - 7.0.0-4ubuntu0.2

Ubuntu 18.04

• python-pil - 5.1.0-1ubuntu0.4
• python3-pil - 5.1.0-1ubuntu0.4

Ubuntu 16.04

• python-pil - 3.1.2-0ubuntu1.5
• python3-pil - 3.1.2-0ubuntu1.5

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

References

• CVE-2020-35655
• CVE-2020-35654
• CVE-2020-35653

Related notices

• USN-4697-2: 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