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3 years ago https://pillow.readthedocs.io/en/stable/releasenotes/8.1.2.html#security
elease Notes » 8.1.2
Edit on GitHub8.1.2 Security
There is an exhaustion of memory DOS in the BLP (CVE-2021-27921), ICNS (CVE-2021-27922) and ICO (CVE-2021-27923) container formats where Pillow did not properly check the reported size of the contained image. These images could cause arbitrarily large memory allocations. This was reported by Jiayi Lin, Luke Shaffer, Xinran Xie, and Akshay Ajayan of Arizona State University.
CVE-2021-27922 - High Severity Vulnerability
Python Imaging Library (Fork)
Library home page: https://files.pythonhosted.org/packages/12/ad/61f8dfba88c4e56196bf6d056cdbba64dc9c5dfdfbc97d02e6472feed913/Pillow-6.2.2-cp27-cp27mu-manylinux1_x86_64.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt,/example/requirements.txt
Dependency Hierarchy: - sense_hat-2.2.0-py2.py3-none-any.whl (Root Library) - :x: **Pillow-6.2.2-cp27-cp27mu-manylinux1_x86_64.whl** (Vulnerable Library)
Found in base branch: master
Pillow before 8.1.1 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked for an ICNS container, and thus an attempted memory allocation can be very large.
Publish Date: 2021-03-03
URL: CVE-2021-27922
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: High
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://pillow.readthedocs.io/en/stable/releasenotes/8.1.2.html
Release Date: 2021-03-03
Fix Resolution (pillow): 8.1.2
Direct dependency fix Resolution (sense-hat): 2.3.1
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