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CVE-2021-25292

Status Candidate

Overview

An issue was discovered in Pillow before 8.1.1. The PDF parser allows a regular expression DoS (ReDoS) attack via a crafted PDF file because of a catastrophic backtracking regex.

Related Files

Ubuntu Security Notice USN-4763-1
Posted Mar 12, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4763-1 - It was discovered that Pillow incorrectly handled certain Tiff image files. 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. This issue only affected Ubuntu 20.04 LTS and Ubuntu 20.10. It was discovered that Pillow incorrectly handled certain Tiff image files. 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. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2021-25289, CVE-2021-25290, CVE-2021-25291, CVE-2021-25292, CVE-2021-25293, CVE-2021-27921, CVE-2021-27922
MD5 | a9bb486c2183b003050adf13de2c0c65
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