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CVE-2023-44271: Uncontrolled Resource Consumption in Pillow - CVE-2023-44271 - DevHub

An issue was discovered in Pillow before 10.0.0. It is a Denial of Service that uncontrollably allocates memory to process a given task, potentially causing a service to crash by having it run out of memory. This occurs for truetype in ImageFont when textlength in an ImageDraw instance operates on a long text argument.

CVE
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Summary

Pillow prior to 10.0.0 allows attackers to cause a Denial of Service when using arbitrary strings as text input in “ImageFont” methods that calculate text size or render it to an image. The number of characters passed to these methods is not properly checked, potentially causing a service to crash by having it run out of memory.

CWE-400 - Uncontrolled resource consumption

An uncontrolled resource allocation attack (also known as resource exhaustion attack) triggers unauthorized overconsumption of the limited resources in an application, such as memory, file system storage, database connection pool entries, and CPU. This may lead to denial of service for valid users and degradation of the application’s functionality as well as that of the host operating system.

Related news

Debian Security Advisory 5704-1

Debian Linux Security Advisory 5704-1 - Multiple security issues were discovered in Pillow, a Python imaging library, which could result in denial of service or the execution of arbitrary code if malformed images are processed.

Gentoo Linux Security Advisory 202405-12

Gentoo Linux Security Advisory 202405-12 - Multiple vulnerabilities have been discovered in Pillow, the worst of which can lead to arbitrary code execution. Versions greater than or equal to 10.2.0 are affected.

Red Hat Security Advisory 2024-1057-03

Red Hat Security Advisory 2024-1057-03 - An update is now available for Red Hat Ansible Automation Platform 2.4. Issues addressed include crlf injection and denial of service vulnerabilities.

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.

Red Hat Security Advisory 2024-0345-03

Red Hat Security Advisory 2024-0345-03 - An update for python-pillow is now available for Red Hat Enterprise Linux 7.

GHSA-8ghj-p4vj-mr35: Pillow Denial of Service vulnerability

An issue was discovered in Pillow before 10.0.0. It is a Denial of Service that uncontrollably allocates memory to process a given task, potentially causing a service to crash by having it run out of memory. This occurs for truetype in ImageFont when textlength in an ImageDraw instance operates on a long text argument.

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