Safety vulnerability ID: 48186
The information on this page was manually curated by our Cybersecurity Intelligence Team.
PyPDF2 1.27.5 includes a fix for CVE-2022-24859: In versions prior to 1.27.5 an attacker can craft a PDF which leads to an infinite loop if PyPDF2 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. Users unable to upgrade should validate PDFs prior to iterating over their content stream.
https://github.com/py-pdf/PyPDF2/security/advisories/GHSA-xcjx-m2pj-8g79
Latest version: 3.0.1
A pure-python PDF library capable of splitting, merging, cropping, and transforming PDF files
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. See CVE-2022-24859.
CONFIRM:https://github.com/py-pdf/PyPDF2/security/advisories/GHSA-xcjx-m2pj-8g79: https://github.com/py-pdf/PyPDF2/security/advisories/GHSA-xcjx-m2pj-8g79
MISC:https://github.com/py-pdf/PyPDF2/issues/329: https://github.com/py-pdf/PyPDF2/issues/329
MISC:https://github.com/py-pdf/PyPDF2/pull/740: https://github.com/py-pdf/PyPDF2/pull/740
MISC:https://github.com/py-pdf/PyPDF2/releases/tag/1.27.5: https://github.com/py-pdf/PyPDF2/releases/tag/1.27.5
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