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Vulnerability DatabaseCVE-2021-25291
CVE-2021-25291:
Python vulnerability analysis and mitigation
Overview
An issue was discovered in Pillow before version 8.1.1, identified as CVE-2021-25291. The vulnerability exists in the TiffDecode.c file, specifically in the TiffreadRGBATile function, where an out-of-bounds read could occur due to invalid tile boundaries (Debian Tracker).
Technical details
The vulnerability is present in the TiffDecode.c component of Pillow, where invalid tile boundaries could lead to an out-of-bounds read in TIFFReadRGBATile. The issue has been assigned a CVSS 3 Severity Score of 7.5 (High) (Ubuntu Security, Pillow Docs).
Impact
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 (Ubuntu Notice).
Mitigation and workarounds
The vulnerability has been fixed in Pillow version 8.1.1 and later. Users are advised to update their Pillow installations to the latest version. For Ubuntu systems, standard system updates will make all the necessary changes to address this vulnerability (Ubuntu Notice, Pillow Docs).
Additional resources
Source: This report was generated using AI
Related Python vulnerabilities:
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