PyPDF2 is an open source python PDF library capable of splitting, merging, cropping, and transforming the pages of PDF files. In versions prior to 1.27.5 an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop if the PyPDF2 if the code attempts to get the content stream. The reason is that the last while-loop in `ContentStream._readInlineImage` only terminates when it finds the `EI` token, but never actually checks if the stream has already ended. This issue has been resolved in version `1.27.5`. Users unable to upgrade should validate and PDFs prior to iterating over their content stream.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2022-04-18T00:00:00

Updated: 2024-08-03T04:20:50.700Z

Reserved: 2022-02-10T00:00:00

Link: CVE-2022-24859

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-04-18T19:15:09.757

Modified: 2023-06-10T01:15:52.347

Link: CVE-2022-24859

cve-icon Redhat

Severity : Low

Publid Date: 2022-04-18T00:00:00Z

Links: CVE-2022-24859 - Bugzilla