CVE-2023-36464

pypdf is an open source, pure-python PDF library. In affected versions an attacker may craft a PDF which leads to an infinite loop if `__parse_content_stream` is executed. That is, for example, the case if the user extracted text from such a PDF. This issue was introduced in pull request #969 and resolved in pull request #1828. Users are advised to upgrade. Users unable to upgrade may modify the line `while peek not in (b"\r", b"\n")` in `pypdf/generic/_data_structures.py` to `while peek not in (b"\r", b"\n", b"")`.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/py-pdf/pypdf/pull/1828	Patch
https://github.com/py-pdf/pypdf/pull/969	Issue Tracking Patch
https://github.com/py-pdf/pypdf/security/advisories/GHSA-4vvm-4w3v-6mr8	Exploit Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:pypdf_project:pypdf::::::::
	cpe:2.3:a:pypdf2_project:pypdf2::::::::

History

No history.

Information

Published : 2023-06-27 22:15

Updated : 2023-07-06 16:13

NVD link : CVE-2023-36464

Mitre link : CVE-2023-36464

CVE.ORG link : CVE-2023-36464

JSON object : View

Products Affected

pypdf2_project

pypdf2

pypdf_project

pypdf

CWE

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

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