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Ubuntu Security Notice USN-6618-1

Ubuntu Security Notice 6618-1 - 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. 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.

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Ubuntu Security Notice USN-6618-1
January 30, 2024

pillow vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 23.10
  • Ubuntu 22.04 LTS
  • Ubuntu 20.04 LTS

Summary:

Several security issues were fixed in Pillow.

Software Description:

  • 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 LTS:
python3-pil 9.0.1-1ubuntu0.2

Ubuntu 20.04 LTS:
python3-pil 7.0.0-4ubuntu0.8

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

References:
https://ubuntu.com/security/notices/USN-6618-1
CVE-2023-44271, CVE-2023-50447

Package Information:
https://launchpad.net/ubuntu/+source/pillow/10.0.0-1ubuntu0.1
https://launchpad.net/ubuntu/+source/pillow/9.0.1-1ubuntu0.2
https://launchpad.net/ubuntu/+source/pillow/7.0.0-4ubuntu0.8

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