pypdf is a free and open-source pure-python PDF library. Prior to version 6.1.3, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing the content stream of a page using the LZWDecode filter.
This has been fixed in pypdf version 6.1.3.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Pypdf_Project Pypdf
cpe:2.3:a:pypdf_project:pypdf:*:*:*:*:*:*:*:*
|
— |
6.1.3
|
References 4
https://github.com/py-pdf/pypdf/commit/e51d07807ffcdaf18077b9486dadb3dc05b368da
security-advisories@github.com
https://github.com/py-pdf/pypdf/pull/3502
security-advisories@github.com
https://github.com/py-pdf/pypdf/releases/tag/6.1.3
security-advisories@github.com
https://github.com/py-pdf/pypdf/security/advisories/GHSA-jfx9-29x2-rv3j
security-advisories@github.com