CVEvulnerability

CVE-2023-46250

5.5 MEDIUM Published 2023-10-31 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-10-31
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.1 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weaknesses
CWE-835

Description

pypdf is a free and open-source pure-python PDF library. An attacker who uses a vulnerability present in versions 3.7.0 through 3.16.4 can craft a PDF which leads to an infinite loop. This infinite loop blocks the current process and can utilize a single core of the CPU by 100%. It does not affect memory usage. That is, for example, the case when the pypdf-user manipulates an incoming malicious PDF e.g. by merging it with another PDF or by adding annotations. The issue was fixed in version 3.17.0. As a workaround, apply the patch manually by modifying `pypdf/generic/_data_structures.py`.

Affected configurations

• pypdf project pypdf (>= 3.7.0 < 3.17.0)

Related

Weakness · CWE (1)

  • CWE-835 Loop with Unreachable Exit Condition weakness

References