USN-6618-1: Pillow vulnerabilities

Releases

• Ubuntu 23.10
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS

Packages

• pillow - Python Imaging Library

Details

It was discovered that Pillow incorrectly handled certain long text
arguments. An attacker could possibly use this issue to cause Pillow to
consume resources, leading to a denial of service. This issue only affected
Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2023-44271)

Duarte Santos discovered that Pillow incorrectly handled the environment
parameter to PIL.ImageMath.eval. An attacker could possibly use this issue
to execute arbitrary code. (CVE-2023-50447)

Update instructions

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

Ubuntu 23.10

• python3-pil - 10.0.0-1ubuntu0.1

Ubuntu 22.04

• python3-pil - 9.0.1-1ubuntu0.2

Ubuntu 20.04

• python3-pil - 7.0.0-4ubuntu0.8

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

References

• CVE-2023-44271
• CVE-2023-50447