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GoogleOSV:GHSA-XCJX-M2PJ-8G79

HistoryApr 22, 2022 - 8:54 p.m.

Manipulated inline images can cause Infinite Loop in PyPDF2

2022-04-2220:54:41

Google

osv.dev

pypdf2

infinite loop

manipulated images

pdf

vulnerability

patch

sebastian krause

contentstream

patched

issue

pull request

EPSS

0.001

Percentile

39.9%

JSON

Impact

An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop if the PyPDF2 user wrote the following code:

from PyPDF2 import PdfFileReader, PdfFileWriter
from PyPDF2.pdf import ContentStream

reader = PdfFileReader("malicious.pdf", strict=False)
for page in reader.pages:
    ContentStream(page.getContents(), reader)

Patches

PyPDF2==1.27.5 and later are patched.

Credits to Sebastian Krause for finding (issue) and fixing (PR) it.

References

github.com/py-pdf/PyPDF2

github.com/py-pdf/PyPDF2/issues/329

github.com/py-pdf/PyPDF2/pull/740

github.com/py-pdf/PyPDF2/releases/tag/1.27.5

github.com/py-pdf/PyPDF2/security/advisories/GHSA-xcjx-m2pj-8g79

github.com/pypa/advisory-database/tree/main/vulns/pypdf2/PYSEC-2022-194.yaml

lists.debian.org/debian-lts-announce/2022/06/msg00001.html

lists.debian.org/debian-lts-announce/2023/06/msg00013.html

nvd.nist.gov/vuln/detail/CVE-2022-24859

EPSS

0.001

Percentile

39.9%

JSON

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